Gr 11 Physical Sciences: November Mix P(1)

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

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

<p>Tail-to-head method</p> Signup and view all the answers

<p>Vectors can be added both graphically and algebraically</p> Signup and view all the answers

<p>It is essential for accurate representation and calculation</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 force exerted by a surface to balance the gravitational force</p> Signup and view all the answers

<p>The force that opposes the motion of an object</p> Signup and view all the answers

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

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

<p>An object continues in a state of rest or uniform motion unless acted upon by an unbalanced force</p> Signup and view all the answers

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

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

<p>fk = μkN</p> Signup and view all the answers

<p>It is useful for problems involving inclined planes</p> Signup and view all the answers

<p>Head-to-Tail Method</p> Signup and view all the answers

<p>Pythagoras' Theorem</p> Signup and view all the answers

<p>Resolving into Components</p> Signup and view all the answers

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

<p>Non-Contact Force</p> Signup and view all the answers

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

<p>Closed Vector Diagram</p> Signup and view all the answers

<p>Tail-to-Tail Method</p> Signup and view all the answers

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

<p>No specific law, it is a property of vector addition</p> Signup and view all the answers

<p>Frictional Force</p> Signup and view all the answers

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

<p>An object with both the sum of the forces and the resultant force equal to zero</p> Signup and view all the answers

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

<p>Parallel to the surface</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 pointing away from the dot</p> Signup and view all the answers

<p>Along the line connecting the two objects</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>A region of space where an electric charge will experience a force</p> Signup and view all the answers

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

<p>The product of the magnitudes of the charges</p> Signup and view all the answers

<p>The square of the distance between the charges</p> Signup and view all the answers

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

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

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

<p>The electric field is stronger</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 are inversely proportional to the square of the distance between particles</p> Signup and view all the answers

<p>They are more influenced by the charge with the greater magnitude</p> Signup and view all the answers

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

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

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

<p>It is a long-range force</p> Signup and view all the answers

<p>It represents the magnitude of the electric field</p> Signup and view all the answers

<p>It indicates that the force decreases rapidly with the distance between the charges</p> Signup and view all the answers

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

<p>similar to that of a single loop but weaker</p> Signup and view all the answers

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

<p>they are a significant threat to certain bird species</p> Signup and view all the answers

<p>very low frequency</p> Signup and view all the answers

<p>a moving magnet induces a voltage</p> Signup and view all the answers

<p>the product of the magnetic field and the area of the loop, dependent on the angle between them</p> Signup and view all the answers

<p>it always opposes the change in magnetic flux</p> Signup and view all the answers

<p>to induce a voltage in a wire</p> Signup and view all the answers

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

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

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

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

<p>Weight depends on the gravitational force, while mass remains constant.</p> Signup and view all the answers

<p>The object experiences weightlessness.</p> Signup and view all the answers

<p>F = k(Q1 Q2)/r²</p> Signup and view all the answers

<p>9.0 × 10^9 N·m²·C⁻²</p> Signup and view all the answers

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

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

<p>To relate a quantity to another known quantity.</p> Signup and view all the answers

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

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

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

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

<p>To estimate electricity bills</p> Signup and view all the answers

<p>To design and manage electrical circuits efficiently</p> Signup and view all the answers

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

<p>1/Rp = 1/R1 + 1/R2 + 1/R3 + ... + 1/Rn</p> Signup and view all the answers

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

<p>The sum of the currents through each resistor</p> Signup and view all the answers

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

<p>Watt (W)</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>Kilowatt-hour (kWh)</p> Signup and view all the answers

<p>The force per unit charge at a point</p> Signup and view all the answers

<p>Transfer of energy from one form to another</p> Signup and view all the answers

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

<p>Newtons per coulomb</p> Signup and view all the answers

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

<p>It increases with an increase in current</p> Signup and view all the answers

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

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

<p>A magnetic dipole with a distinct north and south pole</p> Signup and view all the answers

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

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

<p>Stronger near the wire and weaker far away</p> Signup and view all the answers

<p>The induced current will create a magnetic field that opposes the change in magnetic flux.</p> Signup and view all the answers

<p>Converting mechanical energy into electrical energy.</p> Signup and view all the answers

<p>The rate of flow of charge through a circuit.</p> Signup and view all the answers

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

<p>Their resistance is constant at constant temperature.</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>To store energy in a magnetic field.</p> Signup and view all the answers

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

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

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

<p>It can be used for any number of vectors, simplifying the addition process</p> Signup and view all the answers

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

<p>To break a vector into its horizontal and vertical components</p> Signup and view all the answers

<p>Non-contact force</p> Signup and view all the answers

<p>sin(θ) = Ry / R</p> Signup and view all the answers

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

<p>It can be used for both graphical and algebraic methods</p> Signup and view all the answers

<p>Vector addition</p> Signup and view all the answers

<p>It represents the net effect of all the vectors</p> Signup and view all the answers

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

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

<p>Using two perpendicular axes (x-axis and y-axis)</p> Signup and view all the answers

<p>The force that balances the weight of the object.</p> Signup and view all the answers

<p>The ratio of the frictional force to the normal force.</p> Signup and view all the answers

<p>Vector equality</p> Signup and view all the answers

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

<p>It provides a precise and numerical way to specify directions</p> Signup and view all the answers

<p>To provide a numerical way to specify directions, typically measured clockwise from North</p> Signup and view all the answers

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

<p>A vector quantity with a magnitude and direction</p> Signup and view all the answers

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

<p>F_x = F cos(θ)</p> Signup and view all the answers

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

<p>The tail-to-head method</p> Signup and view all the answers

<p>An object continues in a state of rest or uniform motion unless it is acted on by an unbalanced force.</p> Signup and view all the answers

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

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

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

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

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

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

<p>Both laws are inversely proportional to the square of the distance between objects</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>Towards the negative charge</p> Signup and view all the answers

<p>They indicate the direction of the force experienced by a positive test charge</p> Signup and view all the answers

<p>The electric field lines are tangential to the force experienced by a test charge</p> Signup and view all the answers

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

<p>The acceleration increases</p> Signup and view all the answers

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

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

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

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

<p>To simplify the analysis of forces in complex problems</p> Signup and view all the answers

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

<p>f_s = μ_s N</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>The force per unit charge that a test charge would experience at that point</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</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>In the direction of the thumb (using the Right Hand Rule)</p> Signup and view all the answers

<p>The field lines are denser closer to the wire</p> Signup and view all the answers

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

<p>Both have a distinct north and south pole</p> Signup and view all the answers

<p>E = kQ/r²</p> Signup and view all the answers

<p>Edge-on and appear to go into the paper on one side and come out on the other</p> Signup and view all the answers

<p>F = k \frac{Q_1 Q_2}{r^2}</p> Signup and view all the answers

<p>The forces decrease with the square of the distance</p> Signup and view all the answers

<p>To provide a constant of proportionality</p> Signup and view all the answers

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

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

<p>The force decreases by a factor of four</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>It is a fundamental constant of nature</p> Signup and view all the answers

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

<p>The force decreases by a factor of 4.</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>9.8 m/s²</p> Signup and view all the answers

<p>The product of the charges and the distance between them.</p> Signup and view all the answers

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

<p>It depends on the sign of the charges</p> Signup and view all the answers

<p>9.0 × 10^9 N·m²/C²</p> Signup and view all the answers

<p>The force decreases by a factor of 9.</p> Signup and view all the answers

<p>It occurs when the normal force acting on an object is zero.</p> Signup and view all the answers

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

<p>The acceleration due to gravity acting on the object.</p> Signup and view all the answers

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

<p>To generate a magnetic field when an electric current flows through a coil of wire.</p> Signup and view all the answers

<p>Because they carry electric current.</p> Signup and view all the answers

<p>It does not induce a current as it does not pass through the surface.</p> Signup and view all the answers

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

<p>The induced emf is proportional to the rate of change of magnetic flux.</p> Signup and view all the answers

<p>It always opposes the change in magnetic flux.</p> Signup and view all the answers

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

<p>It is to determine the safety limits of magnetic fields.</p> Signup and view all the answers

<p>To make them more visible to birds.</p> Signup and view all the answers

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

<p>To make calculations easier</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 design and manage electrical circuits effectively</p> Signup and view all the answers

<p>It allows for easier calculation of energy consumption</p> Signup and view all the answers

<p>To estimate the electricity bill</p> Signup and view all the answers

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

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

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

<p>Their graph of current vs voltage is 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>To ensure that the direction of the induced emf always works to counteract the change that caused it</p> Signup and view all the answers

<p>The rate of flow of charge through a circuit</p> Signup and view all the answers

<p>Their 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 provide multiple paths for current to flow</p> Signup and view all the answers

<p>1/Rp = 1/R1 + 1/R2 + 1/R3 + ... + 1/Rn</p> Signup and view all the answers

<p>The voltage is the same across all components</p> Signup and view all the answers

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

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

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

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

<p>The power increases</p> Signup and view all the answers

<p>To analyze the circuit and determine its behavior</p> Signup and view all the answers

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

<p>The power increases</p> Signup and view all the answers

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

<p>To accurately represent and calculate vectors</p> Signup and view all the answers

<p>Using both the graphical and algebraic methods</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>Compass directions are descriptive, while bearings are numerical</p> Signup and view all the answers

<p>The direction of a vector is specified by the angle measured anti-clockwise from the positive x-axis</p> Signup and view all the answers

<p>Their physical meaning does not change as long as their magnitude and direction are preserved</p> Signup and view all the answers

<p>Because they can represent quantities with both magnitude and direction</p> Signup and view all the answers

<p>It indicates that the resultant vector has zero magnitude.</p> Signup and view all the answers

<p>Horizontal and vertical components.</p> Signup and view all the answers

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

<p>To determine the magnitudes of the components.</p> Signup and view all the answers

<p>Tail-to-tail method.</p> Signup and view all the answers

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

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

<p>To simplify the calculation of the resultant force.</p> Signup and view all the answers

<p>It must touch an object to cause a change.</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>To simplify calculations involving inclined planes</p> Signup and view all the answers

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

<p>A force that balances the gravitational force</p> Signup and view all the answers

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

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

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

<p>The object will accelerate in the direction of the force</p> Signup and view all the answers

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

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

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

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

<p>To simplify the problem and find the resultant force</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>They have equal magnitude but opposite direction</p> Signup and view all the answers

<p>It determines the magnitude of the frictional force</p> Signup and view all the answers

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

<p>A constant that depends on the surface</p> Signup and view all the answers

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

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

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

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

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

<p>Weight depends on the gravitational force and mass remains constant</p> Signup and view all the answers

<p>It becomes zero</p> Signup and view all the answers

<p>The product of the charges and the inverse square of the distance</p> Signup and view all the answers

<p>Stronger electric field</p> Signup and view all the answers

<p>Both are inverse-square laws</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>9.8 m·s⁻²</p> Signup and view all the answers

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

<p>A region of space in which an electric charge will experience a force</p> Signup and view all the answers

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

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

<p>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 equal and opposite</p> Signup and view all the answers

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

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

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

<p>The product of the magnitudes of the charges and inversely proportional to the distance between them</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 decreases with the distance between charges</p> Signup and view all the answers

<p>To ensure efficient use of energy and manage electrical circuits effectively</p> Signup and view all the answers

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

<p>Determine the power rating of the appliance in kilowatts</p> Signup and view all the answers

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

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

<p>9.0 10^9 Nm^2/C^2</p> Signup and view all the answers

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

<p>To explain the electrostatic force between two charges</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>The electric field is stronger in that region</p> Signup and view all the answers

<p>The force per unit charge at that point</p> Signup and view all the answers

<p>Newtons per coulomb</p> Signup and view all the answers

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

<p>It decreases inversely with the square of the distance</p> Signup and view all the answers

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

<p>Converging through the loop</p> Signup and view all the answers

<p>Uniform and parallel lines</p> Signup and view all the answers

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

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

<p>The magnetic field strength is proportional to the current</p> Signup and view all the answers

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

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

<p>To make the power lines more visible to birds</p> Signup and view all the answers

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

<p>The Right Hand Rule</p> 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>To describe the relationship between the rate of change of magnetic flux and the induced emf</p> Signup and view all the answers

<p>The change in magnetic flux induces a voltage</p> Signup and view all the answers

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

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

<p>Its resistance is constant at constant temperature</p> Signup and view all the answers

<p>It indicates the opposition to the change in magnetic flux</p> Signup and view all the answers

<p>To determine the direction of the induced current</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>It controls the magnetic field strength</p> Signup and view all the answers

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

<p>1/Rp = 1/R1 + 1/R2 + 1/R3 + ... + 1/Rn</p> Signup and view all the answers

<p>To ensure that the induced current opposes the change in magnetic flux</p> Signup and view all the answers

<p>V = V1 = V2 = V3 = ... = Vn</p> Signup and view all the answers

<p>I = I1 + I2 + I3 + ... + In</p> Signup and view all the answers

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

<p>A series circuit has only one path, while a parallel circuit has multiple paths</p> Signup and view all the answers

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

<p>It allows us to analyze circuits with multiple resistors in series and parallel</p> Signup and view all the answers

<p>Watt (W)</p> Signup and view all the answers

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

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

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

<p>P = I^2 · R</p> Signup and view all the answers

<p>P = V^2 / R</p> Signup and view all the answers

<p>It can be used for any number of vectors</p> Signup and view all the answers

<p>It indicates that the net effect of all vectors is zero</p> Signup and view all the answers

<p>It is most useful for resolving vectors into components</p> Signup and view all the answers

<p>To determine the magnitude of the components</p> Signup and view all the answers

<p>It is the vector that results from adding multiple vectors</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>It must touch an object to cause a change</p> Signup and view all the answers

<p>The gravitational force is proportional to the product of the masses and inversely proportional to the square of the distance, while the electrostatic force is proportional to the product of the charges and inversely proportional to the square of the distance.</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>It is used to measure the magnitude of a force</p> Signup and view all the answers

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

<p>To simplify the calculation of the resultant force</p> Signup and view all the answers

<p>It states that a force is required to change the motion of an object</p> Signup and view all the answers

<p>When the object is in a state of free fall.</p> Signup and view all the answers

<p>Both are proportional to the product of the masses or charges and inversely proportional to the square of the distance.</p> Signup and view all the answers

<p>To calculate the electrostatic force between two point charges.</p> Signup and view all the answers

<p>The gravitational acceleration is proportional to the mass of the Earth, while the electrostatic force is proportional to the product of the charges.</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 gravitational force and electrostatic force are both inverse-square laws.</p> Signup and view all the answers

<p>It is inversely proportional to the square of the gravitational force.</p> Signup and view all the answers

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

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

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

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

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

<p>The Law of Inertia</p> Signup and view all the answers

<p>The object will accelerate in the direction of the net force</p> Signup and view all the answers

<p>R_x = √(F_x^2 + F_y^2)</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>To show all the forces acting on a system</p> Signup and view all the answers

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

<p>to simplify the analysis of complex force systems</p> Signup and view all the answers

<p>it decreases</p> Signup and view all the answers

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

<p>along the line connecting the centers of the objects</p> Signup and view all the answers

<p>it determines the maximum static frictional force</p> Signup and view all the answers

<p>to visualize and analyze the forces acting on an object</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>it is always attractive</p> Signup and view all the answers

<p>to explain both falling bodies and astronomical motions</p> Signup and view all the answers

<p>To represent the strength and direction of an 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 are more influenced by the charge with the greater magnitude.</p> Signup and view all the answers

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

<p>The electric field lines show the direction of the force experienced by a positive test charge.</p> Signup and view all the answers

<p>The direction of the electric field is opposite for positive and negative charges.</p> Signup and view all the answers

<p>To represent the strength and direction of an electric field.</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>It ensures that the electric field lines do not intersect.</p> Signup and view all the answers

<p>The electric field lines are more dense around charges with larger magnitudes.</p> Signup and view all the answers

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

<p>The force decreases rapidly with increasing separation</p> Signup and view all the answers

<p>The product of the magnitudes of the charges</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>Both forces follow an inverse-square relationship</p> Signup and view all the answers

<p>The force is stronger for larger charges</p> Signup and view all the answers

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

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

<p>It represents the strength of the electrostatic force</p> Signup and view all the answers

<p>The force decreases rapidly with increasing separation</p> Signup and view all the answers

<p>To make the calculation of energy consumption more manageable</p> Signup and view all the answers

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

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

<p>Determine the power rating of the appliance in kilowatts (kW)</p> Signup and view all the answers