Podcast
Questions and Answers
What is the average speed of a car that travels 96 km in 1.2 hours?
What is the average speed of a car that travels 96 km in 1.2 hours?
- 90 km/h
- 96 km/h
- 72 km/h
- 80 km/h (correct)
How do you convert an average speed of 80 km/h to m/s?
How do you convert an average speed of 80 km/h to m/s?
- 28.8 m/s
- 20 m/s
- 22.2 m/s (correct)
- 30 m/s
What is the average velocity of a person who rides 2 km east and then 2 km north in 2 hours?
What is the average velocity of a person who rides 2 km east and then 2 km north in 2 hours?
- 1.41 km/h North East (correct)
- 2 km/h North
- 2 km/h
- 2.82 km/h North East
What happens to a car's velocity when it turns a corner while traveling at a constant speed?
What happens to a car's velocity when it turns a corner while traveling at a constant speed?
What is the total distance covered by a person riding a bicycle 2 km east and then 2 km north?
What is the total distance covered by a person riding a bicycle 2 km east and then 2 km north?
What is the equivalent of 20 km/h in m/s?
What is the equivalent of 20 km/h in m/s?
If a person walks 4 m to the blackboard and then back 3 m, what is the total distance covered?
If a person walks 4 m to the blackboard and then back 3 m, what is the total distance covered?
What is the displacement of James after walking 3 km north, 4 km east, and 3 km south?
What is the displacement of James after walking 3 km north, 4 km east, and 3 km south?
How long does it take a train traveling at 8 m/s to cover a distance of 400 m?
How long does it take a train traveling at 8 m/s to cover a distance of 400 m?
What is the average speed of a person who travels 300 m north and then 400 m east in 2 minutes?
What is the average speed of a person who travels 300 m north and then 400 m east in 2 minutes?
If a bicycle travels 300 m north and then 400 m east, what is the total displacement?
If a bicycle travels 300 m north and then 400 m east, what is the total displacement?
In which unit is speed commonly expressed in physics?
In which unit is speed commonly expressed in physics?
What is the correct conversion of 1 cm to meters?
What is the correct conversion of 1 cm to meters?
What does the arrow in a vector represent?
What does the arrow in a vector represent?
Which step is NOT part of the vector addition process?
Which step is NOT part of the vector addition process?
What is the resultant velocity of the airplane flying East at 120 km/h with a wind blowing east at 20 km/h?
What is the resultant velocity of the airplane flying East at 120 km/h with a wind blowing east at 20 km/h?
What is the purpose of setting up a direction reference in vector addition?
What is the purpose of setting up a direction reference in vector addition?
What does the term 'resultant' refer to in vector addition?
What does the term 'resultant' refer to in vector addition?
Which statement is correct regarding the Pythagoras theorem in the context of vectors?
Which statement is correct regarding the Pythagoras theorem in the context of vectors?
When drawing vector diagrams, why should vectors not be drawn too small?
When drawing vector diagrams, why should vectors not be drawn too small?
What does a tangent (tan θ) value indicate in relation to a triangle?
What does a tangent (tan θ) value indicate in relation to a triangle?
What is the total distance traveled in the given scenario?
What is the total distance traveled in the given scenario?
How is displacement defined in the content?
How is displacement defined in the content?
What is the displacement when the runner completes the race around the circular track?
What is the displacement when the runner completes the race around the circular track?
What is the value of the displacement from the starting position in the initial scenario?
What is the value of the displacement from the starting position in the initial scenario?
What mathematical theorem is used to calculate the displacement?
What mathematical theorem is used to calculate the displacement?
Which of the following statements about displacement is true?
Which of the following statements about displacement is true?
What represents the circumference of the circular track in the example?
What represents the circumference of the circular track in the example?
Which formula is used to find the radius of the circular track in the example?
Which formula is used to find the radius of the circular track in the example?
What does the gradient of a velocity-time graph represent?
What does the gradient of a velocity-time graph represent?
What is the primary advantage of using graphical analysis of motion?
What is the primary advantage of using graphical analysis of motion?
How can displacement be calculated from a velocity-time graph?
How can displacement be calculated from a velocity-time graph?
What happens to the initial position when calculating final position using displacement?
What happens to the initial position when calculating final position using displacement?
What do the units of the area under an acceleration-time graph represent?
What do the units of the area under an acceleration-time graph represent?
Which of the following statements is true about velocity and speed?
Which of the following statements is true about velocity and speed?
What is required to calculate an object's final velocity from an acceleration-time graph?
What is required to calculate an object's final velocity from an acceleration-time graph?
What is the function of the area under a velocity-time graph?
What is the function of the area under a velocity-time graph?
What is the primary purpose of using physics in accident reconstruction?
What is the primary purpose of using physics in accident reconstruction?
Which of the following accurately describes displacement?
Which of the following accurately describes displacement?
How is velocity defined in terms of displacement and time?
How is velocity defined in terms of displacement and time?
What distinguishes a vector quantity from a scalar quantity?
What distinguishes a vector quantity from a scalar quantity?
In a one-dimensional motion, what do the positive and negative numbers represent?
In a one-dimensional motion, what do the positive and negative numbers represent?
What is true about both distance and displacement?
What is true about both distance and displacement?
Which statement correctly defines distance?
Which statement correctly defines distance?
Which of the following describes the average speed of a moving object?
Which of the following describes the average speed of a moving object?
Flashcards
Displacement
Displacement
A change in an object's position in a specific direction. It involves subtracting or adding vectors, resulting in another vector.
Distance
Distance
The length of the actual path travelled from the starting point to the finishing point. It only has a magnitude (size) and no direction.
Average Speed
Average Speed
The total distance travelled divided by the time taken. It is a scalar quantity representing the rate of change in distance, but not direction.
Velocity
Velocity
The change in displacement over time. It's a vector quantity, considering both speed and the direction of motion.
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X-Axis
X-Axis
The line representing a direction, with positive and negative numbers indicating direction. It's used to specify the position of an object.
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Vector Quantity
Vector Quantity
A quantity that has both magnitude (size) and direction. Examples include displacement and velocity.
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Scalar Quantity
Scalar Quantity
A quantity that has only magnitude (size) and no direction. Examples include distance, speed, and time.
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Total Distance
Total Distance
The total distance travelled by an object, including all its movements, regardless of direction.
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Displacement as a Vector
Displacement as a Vector
Displacement is a vector quantity, meaning it has both magnitude (size) and direction.
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Positive and Negative Displacement
Positive and Negative Displacement
Positive displacement indicates movement in a forward direction, while negative displacement indicates movement in a backward direction.
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Displacement and Compass Directions
Displacement and Compass Directions
Displacement can also be expressed using compass directions (e.g., 10m East).
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Distance and Circular Tracks
Distance and Circular Tracks
The circumference of a circular track is always the total distance travelled.
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Displacement and Full Circle Runs
Displacement and Full Circle Runs
The displacement of a runner completing a full lap on a circular track is zero, as they end up back at their starting point.
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Displacement and Half-Lap Runs
Displacement and Half-Lap Runs
The displacement of a runner on a circular track after completing half a lap is equal to the diameter of the track.
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Speed
Speed
The rate at which an object changes its position over time.
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Average Velocity
Average Velocity
The total displacement of an object divided by the total time taken.
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Instantaneous Velocity
Instantaneous Velocity
The velocity of an object at a specific moment in time.
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Unit Conversion
Unit Conversion
The conversion of units from one system to another, e.g., from kilometers per hour (km/h) to meters per second (m/s).
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Acceleration
Acceleration
The change in velocity of an object over time. Formula: Acceleration = change in velocity / time.
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Pythagoras Theorem (for forces)
Pythagoras Theorem (for forces)
A mathematical method for finding the combined effect of forces. It uses the lengths and directions of force vectors to determine the resultant force.
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Vector (force)
Vector (force)
A visual representation of a force, with its length representing the magnitude (strength) and its direction indicating the direction of the force.
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Adding Vectors
Adding Vectors
The process of combining two or more vectors to find a single resultant vector that represents the combined effect.
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Resultant Vector
Resultant Vector
The combined effect of multiple forces acting on an object.
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Direction Reference
Direction Reference
A reference system used to describe direction, typically using cardinal directions (North, South, East, West) or compass points.
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Vector Diagram
Vector Diagram
Creating a vector diagram with the correct proportions and directions to accurately represent forces.
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Resultant Velocity
Resultant Velocity
The combined effect of multiple velocities acting on an object, often used to describe the movement of objects in various conditions, such as airplanes flying with wind.
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