Gr 11 Physical Sciences: November Hard P(1)

<p>Using both graphical and algebraic methods.</p> Signup and view all the answers

<p>They simplify calculations of resultant vectors.</p> Signup and view all the answers

<p>To provide a system for specifying vector directions.</p> Signup and view all the answers

<p>It represents the combined effect of multiple vectors acting simultaneously.</p> Signup and view all the answers

<p>Anti-clockwise from the positive x-axis.</p> Signup and view all the answers

<p>To visualize all the forces acting on a system</p> Signup and view all the answers

<p>The normal force and the given pair of surfaces</p> Signup and view all the answers

<p>Zero</p> Signup and view all the answers

<p>Perpendicular to the surface</p> Signup and view all the answers

<p>To simplify calculations involving inclined planes</p> Signup and view all the answers

<p>Dimensionless</p> Signup and view all the answers

<p>f_k = μ_k N</p> Signup and view all the answers

<p>To visualize all the forces acting on an object</p> Signup and view all the answers

<p>F_net = ma</p> Signup and view all the answers

<p>The property of an object to continue in its current state of motion</p> Signup and view all the answers

<p>The normal force experienced by an object in a non-inertial frame of reference</p> Signup and view all the answers

<p>Normal force</p> Signup and view all the answers

<p>f_k = μ_k N</p> Signup and view all the answers

<p>To represent the object of interest as a dot, with all forces acting on it drawn as arrows</p> Signup and view all the answers

<p>Attractive</p> Signup and view all the answers

<p>f_max,s = μ_s N</p> Signup and view all the answers

<p>For every action, there is an equal and opposite reaction</p> Signup and view all the answers

<p>To deal with inclined planes</p> Signup and view all the answers

<p>The vector sum of all the forces acting on an object</p> Signup and view all the answers

<p>The sum of the forces acting on it and the resultant force are equal to zero</p> Signup and view all the answers

<p>The vectors drawn tail-to-head result in a polygon that returns to the origin</p> Signup and view all the answers

<p>R = √(Rx^2 + Ry^2)</p> Signup and view all the answers

<p>To break down a vector into simpler vectors that can be added easily</p> Signup and view all the answers

<p>Newton (N)</p> Signup and view all the answers

<p>A force is anything that can cause a change to objects</p> Signup and view all the answers

<p>A contact force requires touch to cause a change, while a non-contact force does not</p> Signup and view all the answers

<p>To add multiple vectors originating from the same point</p> Signup and view all the answers

<p>Rx = R cos(θ)</p> Signup and view all the answers

<p>It allows for easier addition of vectors by breaking them down into simpler components</p> Signup and view all the answers

<p>The type of particles involved</p> Signup and view all the answers

<p>It decreases by a factor of four</p> Signup and view all the answers

<p>It is the angle measured counter-clockwise from the positive x-axis</p> Signup and view all the answers

<p>9.0 × 10^9 N·m^2/C^2</p> Signup and view all the answers

<p>F = k(Q1 × Q2)/r^2</p> Signup and view all the answers

<p>They both describe forces that are inversely proportional to the square of the distance</p> Signup and view all the answers

<p>Electric field</p> Signup and view all the answers

<p>The force increases with increasing charge magnitude</p> Signup and view all the answers

<p>It increases by a factor of four</p> Signup and view all the answers

<p>Magnitude of the charge</p> Signup and view all the answers

<p>They both involve forces that are inversely proportional to the square of the distance</p> Signup and view all the answers

<p>N·m²·kg⁻²</p> Signup and view all the answers

<p>Along the line connecting the centers of the two masses</p> Signup and view all the answers

<p>The direction in which a positive test charge would move if placed at that point</p> Signup and view all the answers

<p>Weight is a vector quantity, and mass is a scalar quantity</p> Signup and view all the answers

<p>The force experienced by the test charge decreases with distance</p> Signup and view all the answers

<p>Away from the positive charge</p> Signup and view all the answers

<p>When it is in free fall or orbit</p> Signup and view all the answers

<p>The electric field is stronger for a greater magnitude of charge</p> Signup and view all the answers

<p>Both are inverse-square laws</p> Signup and view all the answers

<p>N·m²/C²</p> Signup and view all the answers

<p>Towards the negative charge</p> Signup and view all the answers

<p>The electric field lines repel from both charges, creating a region of zero net force</p> Signup and view all the answers

<p>The magnetic field strength is significantly weaker outside</p> Signup and view all the answers

<p>The force is inversely proportional to the square of the distance</p> Signup and view all the answers

<p>Mass is the amount of matter in an object, while weight is the force of gravity on an object</p> Signup and view all the answers

<p>To maximize the magnetic field strength and control it</p> Signup and view all the answers

<p>The electric field lines start from the positive charge and end at the negative charge</p> Signup and view all the answers

<p>To relate a quantity in terms of another known quantity</p> Signup and view all the answers

<p>The impact on the environment, particularly birds</p> Signup and view all the answers

<p>The electric field lines are more influenced by the charge with the greater magnitude</p> Signup and view all the answers

<p>To show the strength and direction of the electric field</p> Signup and view all the answers

<p>The angle between the magnetic field and the normal to the loop</p> Signup and view all the answers

<p>He discovered the electrostatic force and developed Coulomb's law</p> Signup and view all the answers

<p>Field lines are drawn tangential to a charge or charged surface</p> Signup and view all the answers

<p>To describe the relationship between electric and magnetic fields</p> Signup and view all the answers

<p>In the opposite direction to the magnetic field of the south pole</p> Signup and view all the answers

<p>To determine the direction of the induced current</p> Signup and view all the answers

<p>Weber</p> Signup and view all the answers

<p>It does not induce any voltage across the wire</p> Signup and view all the answers

<p>To indicate the direction of the induced emf</p> Signup and view all the answers

<p>Kilowatt-hours</p> Signup and view all the answers

<p>Divide by 1000</p> Signup and view all the answers

<p>Cost = Power (kW) × Time (hours) × Cost per kWh</p> Signup and view all the answers

<p>To estimate the cost of electricity bills based on usage patterns</p> Signup and view all the answers

<p>Hours</p> Signup and view all the answers

<p>It aids in designing and managing electrical circuits effectively</p> Signup and view all the answers

<p>Perpendicular to the direction of the current flow</p> Signup and view all the answers

<p>Newtons per coulomb (N·C⁻¹)</p> Signup and view all the answers

<p>A stronger current results in a stronger magnetic field</p> Signup and view all the answers

<p>Concentric circles</p> Signup and view all the answers

<p>Through the loop</p> Signup and view all the answers

<p>E = F/q</p> Signup and view all the answers

<p>Uniform and resembling a bar magnet</p> Signup and view all the answers

<p>To determine the direction of the magnetic field</p> Signup and view all the answers

<p>⊙</p> Signup and view all the answers

<p>Out of the loop</p> Signup and view all the answers

<p>The Right Hand Rule</p> Signup and view all the answers

<p>Electromagnetic induction</p> Signup and view all the answers

<p>To ensure the direction of the induced emf always opposes the change that caused it</p> Signup and view all the answers

<p>I = V/R</p> Signup and view all the answers

<p>A straight line</p> Signup and view all the answers

<p>The sum of the resistances of all the resistors</p> Signup and view all the answers

<p>The same</p> Signup and view all the answers

<p>Proportional to its resistance</p> Signup and view all the answers

<p>Their resistance changes with temperature</p> Signup and view all the answers

<p>To analyze circuits with resistors in series or parallel</p> Signup and view all the answers

<p>1/R1 + 1/R2 + ... + 1/Rn</p> Signup and view all the answers

<p>I1 = I2 = I3</p> Signup and view all the answers

<p>Joules per second (J/s)</p> Signup and view all the answers

<p>P = I × V</p> Signup and view all the answers

<p>E = P × t</p> Signup and view all the answers

<p>To analyze complex circuits with multiple setups</p> Signup and view all the answers

<p>Power is directly proportional to the voltage</p> Signup and view all the answers

<p>To derive equivalent expressions for power</p> Signup and view all the answers

<p>Kilowatt-hours (kWh)</p> Signup and view all the answers

<p>Power is directly proportional to the square of the current</p> Signup and view all the answers

<p>When the resultant vector has zero magnitude</p> Signup and view all the answers

<p>To simplify the addition of vectors</p> Signup and view all the answers

<p>R = sqrt(R_x^2 + R_y^2)</p> Signup and view all the answers

<p>Contact forces require direct physical contact</p> Signup and view all the answers

<p>Newton (N)</p> Signup and view all the answers

<p>To simplify the addition of vectors</p> Signup and view all the answers

<p>R_x = R cos(θ)</p> Signup and view all the answers

<p>It is more accurate than other methods</p> Signup and view all the answers

<p>It is the angle between the vector and the x-axis</p> Signup and view all the answers

<p>A push or pull that causes an object to change its motion</p> Signup and view all the answers

<p>Because their magnitude and direction are preserved</p> Signup and view all the answers

<p>They form a right angle when originating from the same point</p> Signup and view all the answers

<p>They provide a numerical way to specify directions</p> Signup and view all the answers

<p>To add vectors graphically</p> Signup and view all the answers

<p>It is essential for accurate representation and calculation</p> Signup and view all the answers

<p>They are perpendicular to each other</p> Signup and view all the answers

<p>A resultant vector representing the combined effect of multiple vectors</p> Signup and view all the answers

<p>To provide a clear and accurate representation of the vector</p> Signup and view all the answers

<p>43.3 N</p> Signup and view all the answers

<p>49.3 N</p> Signup and view all the answers

<p>2 m/s²</p> Signup and view all the answers

<p>To distinguish between the different forces and prevent confusion</p> Signup and view all the answers

<p>7.35 N</p> Signup and view all the answers

<p>To simplify the diagram and focus on the forces</p> Signup and view all the answers

<p>14.14 N</p> Signup and view all the answers

<p>1.47 m/s²</p> Signup and view all the answers

<p>To indicate the direction of the forces and prevent confusion</p> Signup and view all the answers

<p>49 N</p> Signup and view all the answers

<p>Component of gravitational force parallel to the slope</p> Signup and view all the answers

<p>The difference between the gravitational force and the tension force</p> Signup and view all the answers

<p>It increases the apparent weight</p> Signup and view all the answers

<p>They have equal magnitude but opposite direction</p> Signup and view all the answers

<p>The sum of the forces acting on it is equal to zero</p> Signup and view all the answers

<p>To identify the forces acting on an object</p> Signup and view all the answers

<p>F_g sin(θ)</p> Signup and view all the answers

<p>Every point mass attracts every other point mass by a force directed along the line connecting the two</p> Signup and view all the answers

<p>Static friction acts on stationary objects, while kinetic friction acts on moving objects</p> Signup and view all the answers

<p>It is the force perpendicular to the slope</p> Signup and view all the answers

<p>Newtons per coulomb (N·C⁻¹)</p> Signup and view all the answers

<p>Perpendicular to the direction of the current flow</p> Signup and view all the answers

<p>A pattern that converges through the loop</p> Signup and view all the answers

<p>The current flowing through the wire</p> Signup and view all the answers

<p>⊙</p> Signup and view all the answers

<p>A strong and uniform field</p> Signup and view all the answers

<p>Parallel to the direction of the electric field</p> Signup and view all the answers

<p>E = kQ/r</p> Signup and view all the answers

<p>To determine the direction of the magnetic field</p> Signup and view all the answers

<p>Concentric circles</p> Signup and view all the answers

<p>Because they are in continuous free fall around the Earth</p> Signup and view all the answers

<p>Towards the negative charge</p> Signup and view all the answers

<p>The electrostatic force is directly proportional to the product of the charges</p> Signup and view all the answers

<p>The field is stronger</p> Signup and view all the answers

<p>Coulomb's law is only applicable to point-like charges, while Newton's law is applicable to all objects with mass</p> Signup and view all the answers

<p>They repel each other</p> Signup and view all the answers

<p>Mass</p> Signup and view all the answers

<p>It represents the proportionality constant between the gravitational force and the product of the masses</p> Signup and view all the answers

<p>Away from the positive charge</p> Signup and view all the answers

<p>They point towards the charge</p> Signup and view all the answers

<p>Both are inverse-square laws</p> Signup and view all the answers

<p>The electric field lines are stronger for larger charges</p> Signup and view all the answers

<p>The electrostatic force is inversely proportional to the square of the distance between the charges</p> Signup and view all the answers

<p>To represent the force experienced by a test charge</p> Signup and view all the answers

<p>N·m^2·kg^-2</p> Signup and view all the answers

<p>It represents the proportionality constant between the electrostatic force and the product of the charges</p> Signup and view all the answers

<p>The lines point away from a positive charge and towards a negative charge</p> Signup and view all the answers

<p>Electromagnetic field</p> Signup and view all the answers

<p>They attract each other</p> Signup and view all the answers

<p>The force decreases with distance</p> Signup and view all the answers

<p>To oppose the change in magnetic flux</p> Signup and view all the answers

<p>Ohms</p> Signup and view all the answers

<p>Resistance is constant at a given temperature</p> Signup and view all the answers

<p>R_s = R_1 + R_2 + R_3 + … + R_n</p> Signup and view all the answers

<p>To analyze circuits with resistors in series or parallel</p> Signup and view all the answers

<p>Resistance changes with temperature</p> Signup and view all the answers

<p>Opposite to the change in magnetic flux</p> Signup and view all the answers

<p>To convert mechanical energy into electrical energy</p> Signup and view all the answers

<p>Current is directly proportional to voltage</p> Signup and view all the answers

<p>Ohmic conductor</p> Signup and view all the answers

<p>Because they both describe forces that are inversely proportional to the distance between the particles</p> Signup and view all the answers

<p>The force increases by a factor of four</p> Signup and view all the answers

<p>The electrostatic constant</p> Signup and view all the answers

<p>Forces diminish with the square of the distance between interacting particles</p> Signup and view all the answers

<p>It helps explain how charges influence each other across space</p> Signup and view all the answers

<p>The force is directly proportional to the magnitude of the charges</p> Signup and view all the answers

<p>N·m^2/C^2</p> Signup and view all the answers

<p>Kilowatt-hours</p> Signup and view all the answers

<p>Cost = Power (kW) × Time (hours) × Cost per kWh</p> Signup and view all the answers

<p>The force increases by a factor of two</p> Signup and view all the answers

<p>To calculate the total energy consumption</p> Signup and view all the answers

<p>The magnetic field is weaker outside the solenoid</p> Signup and view all the answers

<p>F = k(Q1 × Q2)/r^2</p> Signup and view all the answers

<p>To maximize the magnetic field strength</p> Signup and view all the answers

<p>It helps in designing and managing electrical circuits effectively</p> Signup and view all the answers

<p>They both describe forces that diminish with the square of the distance between the particles</p> Signup and view all the answers

<p>Divide by 1000</p> Signup and view all the answers

<p>A voltage is generated across the wire only when the magnet is moving</p> Signup and view all the answers

<p>Weber</p> Signup and view all the answers

<ol> <li>Determine the power rating, 2. Multiply by the time, 3. Multiply by the cost per kWh</li> </ol> Signup and view all the answers

<p>The current flows in the opposite direction to the magnetic field</p> Signup and view all the answers

<p>They can cause birds to collide with them, leading to fatalities</p> Signup and view all the answers

<p>It is crucial for the generation of electricity</p> Signup and view all the answers

<p>φ = B × A cos(θ)</p> Signup and view all the answers

<p>To determine the direction of the magnetic field</p> Signup and view all the answers

<p>The magnetic field strength can be controlled</p> Signup and view all the answers

<p>$\frac{1}{R_p} = \frac{1}{R_1} + \frac{1}{R_2} + \frac{1}{R_3} + ... + \frac{1}{R_n}$</p> Signup and view all the answers

<p>Watt</p> Signup and view all the answers

<p>$E = P \cdot t$</p> Signup and view all the answers

<p>To derive equivalent expressions for power when the current and resistance are known</p> Signup and view all the answers

<p>It is useful when the current and resistance are known</p> Signup and view all the answers

<p>It increases</p> Signup and view all the answers

<p>Kilowatt-hour</p> Signup and view all the answers

<p>To calculate the total resistance in a circuit</p> Signup and view all the answers

<p>Power is the rate of energy transfer</p> Signup and view all the answers

<p>To find the power when the voltage and resistance are known</p> Signup and view all the answers

<p>Their magnitude and direction are preserved regardless of their position.</p> Signup and view all the answers

<p>To simplify calculations of resultant vectors.</p> Signup and view all the answers

<p>Anti-clockwise from the positive x-axis.</p> Signup and view all the answers

<p>It is essential for accurate representation and calculation.</p> Signup and view all the answers

<p>To provide a numerical way to specify directions.</p> Signup and view all the answers

<p>The graphical method uses the tail-to-head method, while the algebraic method uses components.</p> Signup and view all the answers

<p>The combined effect of multiple vectors acting simultaneously.</p> Signup and view all the answers

<p>It is used to represent vectors in two dimensions.</p> Signup and view all the answers

<p>It can be used to add more than two vectors</p> Signup and view all the answers

<p>It indicates a resultant vector with zero magnitude</p> Signup and view all the answers

<p>To simplify the calculation of the resultant vector's magnitude</p> Signup and view all the answers

<p>R = √(R_x^2 + R_y^2)</p> Signup and view all the answers

<p>Newton</p> Signup and view all the answers

<p>Contact forces must touch an object to cause a change</p> Signup and view all the answers

<p>To find the horizontal and vertical components of the vector</p> Signup and view all the answers

<p>It is the angle measured counter-clockwise from the positive x-axis</p> Signup and view all the answers

<p>It helps to simplify the calculation of the resultant vector's magnitude</p> Signup and view all the answers

<p>Anything that can cause a change to an object</p> Signup and view all the answers

<p>Parallel to the slope</p> Signup and view all the answers

<p>The tension is less than the gravitational force</p> Signup and view all the answers

<p>Zero</p> Signup and view all the answers

<p>To simplify the force diagram</p> Signup and view all the answers

<p>Perpendicular to the surface</p> Signup and view all the answers

<p>The static frictional force is proportional to the normal force</p> Signup and view all the answers

<p>Gravity</p> Signup and view all the answers

<p>All of the above</p> Signup and view all the answers

<p>It acts through physical contact</p> Signup and view all the answers

<p>It is a constant for a given pair of surfaces</p> Signup and view all the answers

<p>The gravitational force is inversely proportional to the square of the distance between the two objects</p> Signup and view all the answers

<p>Directly proportional to the product of the charges</p> Signup and view all the answers

<p>Mass is a measure of the amount of matter in an object, while weight is a measure of the gravitational force on an object</p> Signup and view all the answers

<p>The force decreases with the square of the distance</p> Signup and view all the answers

<p>It is the same for all objects regardless of their mass</p> Signup and view all the answers

<p>Both laws describe forces that are inversely proportional to the square of the distance between particles</p> Signup and view all the answers

<p>The electrostatic force is inversely proportional to the square of the distance between the two charges</p> Signup and view all the answers

<p>It is a proportionality constant that relates the electrostatic force to the product of the charges and the distance between them</p> Signup and view all the answers

<p>The force decreases by a factor of nine</p> Signup and view all the answers

<p>It describes the electrostatic force between two charges</p> Signup and view all the answers

<p>The gravitational force is a force between masses, while the electrostatic force is a force between charges</p> Signup and view all the answers

<p>Magnitude of the charges</p> Signup and view all the answers

<p>They are both inverse-square laws</p> Signup and view all the answers

<p>F = k(Q1 * Q2)/r^2</p> Signup and view all the answers

<p>It is a measure of the strength of the gravitational force between two objects</p> Signup and view all the answers

<p>Electric field</p> Signup and view all the answers

<p>The weight of an object is proportional to its mass</p> Signup and view all the answers

<p>Both laws describe forces that are inversely proportional to the square of the distance between particles</p> Signup and view all the answers

<p>9.0 x 10^9 N·m^2/C^2</p> Signup and view all the answers

<p>It is a state where an object is in continuous free fall around the Earth</p> Signup and view all the answers

<p>The field inside is stronger and more concentrated, while the field outside is weaker and more dispersed.</p> Signup and view all the answers

<p>To control the strength of the magnetic field by varying the current.</p> Signup and view all the answers

<p>They have a significant impact on the environment, particularly on certain bird species.</p> Signup and view all the answers

<p>They are not considered harmful to humans at levels commonly encountered, but ongoing research and debate continue regarding the long-term effects.</p> Signup and view all the answers

<p>The magnetic field strength multiplied by the area of the loop, cosined by the angle between the magnetic field and the normal to the loop.</p> Signup and view all the answers

<p>It is in the opposite direction to the change in magnetic flux.</p> Signup and view all the answers

<p>It generates a current that repels the south pole.</p> Signup and view all the answers

<p>E = -NΔφ/Δt</p> Signup and view all the answers

<p>Weber</p> Signup and view all the answers

<p>The magnetic field must be changing.</p> Signup and view all the answers

<p>To describe the direction of the induced current</p> Signup and view all the answers

<p>Ohms</p> Signup and view all the answers

<p>The resistance changes with temperature</p> Signup and view all the answers

<p>R_s = R_1 + R_2 + R_3 + ... + R_n</p> Signup and view all the answers

<p>To convert mechanical energy into electrical energy</p> Signup and view all the answers

<p>The induction of a current in the same wire</p> Signup and view all the answers

<p>The current is directly proportional to the voltage</p> Signup and view all the answers

<p>I = V/R</p> Signup and view all the answers

<p>Away from the positive charge</p> Signup and view all the answers

<p>To generate a magnetic field</p> Signup and view all the answers

<p>To show the direction and relative strength of the electric field</p> Signup and view all the answers

<p>The opposite direction of the change in magnetic flux</p> Signup and view all the answers

<p>They point away from the charge</p> Signup and view all the answers

<p>The greater the magnitude of the charge, the stronger the electric field</p> Signup and view all the answers

<p>The electric field lines point away from both charges</p> Signup and view all the answers

<p>The electric field is stronger</p> Signup and view all the answers

<p>The electric field lines point towards the negative charge</p> Signup and view all the answers

<p>To show the direction of the force that a positive test charge would experience</p> Signup and view all the answers

<p>The electric field lines are more influenced by the charge with the greater magnitude</p> Signup and view all the answers

<p>The electric field lines are not in the same region of space</p> Signup and view all the answers

<p>N·C⁻¹</p> Signup and view all the answers

<p>Perpendicular to the direction of the current</p> Signup and view all the answers

<p>To determine the direction of the magnetic field lines</p> Signup and view all the answers

<p>Converging lines with a distinct north and south pole</p> Signup and view all the answers

<p>⊙</p> Signup and view all the answers

<p>The magnetic field strength increases</p> Signup and view all the answers

<p>Uniform and strong</p> Signup and view all the answers

<p>E = F/q</p> Signup and view all the answers

<p>The electric field strength increases</p> Signup and view all the answers

<p>N·m²/C²</p> Signup and view all the answers

<p>Kilowatt-hours</p> Signup and view all the answers

<p>Cost = Power (kW) × Time (hours) × Cost per kWh</p> Signup and view all the answers

<p>To make the units consistent with the power rating</p> Signup and view all the answers

<p>All of the above</p> Signup and view all the answers

<p>To determine the cost of running the appliance</p> Signup and view all the answers

<p>Kilowatt-hours</p> Signup and view all the answers

<p>$P = I \cdot V$</p> Signup and view all the answers

<p>Watt</p> Signup and view all the answers

<p>$E = P \cdot t$</p> Signup and view all the answers

<p>To convert chemical potential energy into electrical energy</p> Signup and view all the answers

<p>Power is directly proportional to the voltage</p> Signup and view all the answers

<p>$1/R_p = 1/R_1 + 1/R_2 + 1/R_3 + \ldots + 1/R_n$</p> Signup and view all the answers

<p>Kilowatt-hour</p> Signup and view all the answers

<p>Power is directly proportional to the square of the current</p> Signup and view all the answers

<p>To calculate the total resistance in stages</p> Signup and view all the answers

<p>The rate at which work is done</p> Signup and view all the answers

<p>The vector sum of all the forces acting on the object</p> Signup and view all the answers

<p>To simplify complex problems involving inclined planes</p> Signup and view all the answers

<p>The nature of the surfaces in contact</p> Signup and view all the answers

<p>Perpendicular to the surface</p> Signup and view all the answers

<p>f_k = μ_k N</p> Signup and view all the answers

<p>If a resultant force acts on a body, it will cause the body to accelerate in the direction of the resultant force</p> Signup and view all the answers

<p>To represent the forces acting on an object</p> Signup and view all the answers

<p>f_s = μ_s N</p> Signup and view all the answers

<p>Perpendicular to the inclined plane</p> Signup and view all the answers

<p>The net force acting on the object is zero</p> Signup and view all the answers

<p>To provide a coordinate system for graphing vectors</p> Signup and view all the answers

<p>90 degrees</p> Signup and view all the answers

<p>It is essential for accurate representation and calculation</p> Signup and view all the answers

<p>A vector with a magnitude and direction that represents the combined effect</p> Signup and view all the answers

<p>With their tails anywhere on the plane and their heads at the origin</p> Signup and view all the answers

<p>It is the reference point for measuring vector direction</p> Signup and view all the answers

<p>Two vectors that are perpendicular to each other and have magnitudes that add up to the original vector</p> Signup and view all the answers

<p>It is more efficient</p> Signup and view all the answers

<p>Resolve all forces into components parallel to the x- and y-directions, and then use vector addition to find the resultant force.</p> Signup and view all the answers

<p>The normal force is perpendicular to the gravitational force.</p> Signup and view all the answers

<p>The nature of the surfaces in contact and the magnitude of the normal force.</p> Signup and view all the answers

<p>To sketch all the forces acting on a system, represented by arrows.</p> Signup and view all the answers

<p>F = ma</p> Signup and view all the answers

<p>Opposite to the direction of motion.</p> Signup and view all the answers

<p>The resultant force acting on the object is zero.</p> Signup and view all the answers

<p>Component of gravitational force parallel to the slope</p> Signup and view all the answers

<p>To simplify calculations involving inclined planes.</p> Signup and view all the answers

<p>f_s = μ_sN</p> Signup and view all the answers

<p>Zero or equal to zero</p> Signup and view all the answers

<p>The coefficient of static friction is always greater than the coefficient of kinetic friction</p> Signup and view all the answers

<p>The property of an object to continue in its current state of motion unless acted upon by a net force.</p> Signup and view all the answers

<p>To visualize and identify all the forces acting on an object</p> Signup and view all the answers

<p>It increases the apparent weight</p> Signup and view all the answers

<p>Along the line connecting the two objects</p> Signup and view all the answers

<p>Static friction acts on stationary objects, while kinetic friction acts on moving objects</p> Signup and view all the answers

<p>To simplify the calculation of forces acting on an object in a two-dimensional plane</p> Signup and view all the answers

<p>The sum of the forces acting on it and the resultant force are both equal to zero</p> Signup and view all the answers

<p>For every action, there is an equal and opposite reaction</p> Signup and view all the answers

<p>The resultant vector has zero magnitude</p> Signup and view all the answers

<p>It simplifies the calculation of the resultant vector's magnitude</p> Signup and view all the answers

<p>R = √(Rx^2 + Ry^2)</p> Signup and view all the answers

<p>It is measured counter-clockwise from the positive x-axis</p> Signup and view all the answers

<p>To add vectors in a graphical method</p> Signup and view all the answers

<p>Newton</p> Signup and view all the answers

<p>A push or pull that can cause a change to objects</p> Signup and view all the answers

<p>A contact force must touch or be in contact with an object, while a non-contact force does not</p> Signup and view all the answers

<p>Rx = R cos(θ)</p> Signup and view all the answers

<p>Two perpendicular vectors that sum to the original vector</p> Signup and view all the answers

<p>Mass is constant, whereas weight depends on the gravitational force</p> Signup and view all the answers

<p>It is a force that depends on the velocity of the objects</p> Signup and view all the answers

<p>It increases by a factor of 4</p> Signup and view all the answers

<p>They are both inversely proportional to the distance between the objects</p> Signup and view all the answers

<p>6.67 × 10^-11 N·m²·kg⁻²</p> Signup and view all the answers

<p>It acts along the line connecting the centers of the two masses</p> Signup and view all the answers

<p>Gravitational acceleration is the acceleration of an object due to gravity, while gravitational force is the force of gravity on an object</p> Signup and view all the answers

<p>The electrostatic force is directly proportional to the magnitude of the charges</p> Signup and view all the answers

<p>It describes the electrostatic force between two point-like charges</p> Signup and view all the answers

<p>It decreases by a factor of 4</p> Signup and view all the answers

<p>Both forces exhibit an inverse-square relationship with distance</p> Signup and view all the answers

<p>The force increases by a factor of 4</p> Signup and view all the answers

<p>It is a fundamental constant that describes the electrostatic force between two charges</p> Signup and view all the answers

<p>Coulomb's law describes the force between two charges, while Newton's law describes the force between two masses</p> Signup and view all the answers

<p>The force is directly proportional to the magnitude of the charges and inversely proportional to the distance between them</p> Signup and view all the answers

<p>To explain how charges influence each other across space</p> Signup and view all the answers

<p>It highlights the rapid decrease in force with increasing separation between particles</p> Signup and view all the answers

<p>F = k(Q1 * Q2)/r^2</p> Signup and view all the answers

<p>Both laws describe forces that exhibit an inverse-square relationship with distance</p> Signup and view all the answers

<p>Magnitude of a charge</p> Signup and view all the answers

<p>In the same direction as the force experienced by the test charge</p> Signup and view all the answers

<p>The force decreases with distance</p> Signup and view all the answers

<p>It indicates the strength of the electric field</p> Signup and view all the answers

<p>Towards the negative charge</p> Signup and view all the answers

<p>The electric field lines cancel out in the region between the charges</p> Signup and view all the answers

<p>To represent the direction of the electric field</p> Signup and view all the answers

<p>They indicate the direction of the electric field</p> Signup and view all the answers