Podcast
Questions and Answers
A car travels 200 km North, then turns around and travels 100 km South. What is the car's displacement?
A car travels 200 km North, then turns around and travels 100 km South. What is the car's displacement?
- 100 km South
- 100 km North (correct)
- 300 km North
- 300 km South
Which of the following is considered a vector quantity?
Which of the following is considered a vector quantity?
- Distance
- Velocity (correct)
- Time
- Speed
If two objects have the same speed but are moving in opposite directions, what can be said about their velocities?
If two objects have the same speed but are moving in opposite directions, what can be said about their velocities?
- Their velocities are the same.
- Their velocities have the same direction.
- Their velocities are different. (correct)
- Their velocities are both zero.
A cyclist rides 30 km East and then 40 km North. What is the magnitude of the cyclist's displacement?
A cyclist rides 30 km East and then 40 km North. What is the magnitude of the cyclist's displacement?
What is the primary difference between distance and displacement?
What is the primary difference between distance and displacement?
A bird flies 100 m East, 50 m North, and then 100 m West. What is the bird's total distance traveled?
A bird flies 100 m East, 50 m North, and then 100 m West. What is the bird's total distance traveled?
If a runner completes a 400-meter track and ends up at the starting point, what is the runner's displacement?
If a runner completes a 400-meter track and ends up at the starting point, what is the runner's displacement?
Which of the following is an example of a scalar quantity?
Which of the following is an example of a scalar quantity?
A boat travels across a lake with a speed of 10 m/s. If the lake is 1000 meters wide, how long does it take the boat to cross the lake?
A boat travels across a lake with a speed of 10 m/s. If the lake is 1000 meters wide, how long does it take the boat to cross the lake?
If a person walks 5 km East and then 5 km West, what is their final displacement?
If a person walks 5 km East and then 5 km West, what is their final displacement?
Flashcards
Distance
Distance
The total amount of space traveled, without considering direction; it's the length of the path taken.
Displacement
Displacement
The shortest straight-line distance from start to finish, including direction.
Scalar
Scalar
A measurement that only has size (magnitude), but no direction.
Vector
Vector
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Speed
Speed
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Velocity
Velocity
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Study Notes
- Distance is the total space traveled, measured in centimeters, meters, or kilometers.
- Distance only accounts for the length of the path taken.
- Displacement is the shortest straight-line distance from start to finish, including direction.
- Displacement considers the end point compared to the starting point.
Scalars vs. Vectors
- A scalar is a measurement that only has size, examples are distance, speed and time.
- A vector is a measurement that has both size and direction, examples are displacement, velocity, and force.
Speed & Velocity
- Speed measures how fast something moves and is a scalar quantity.
- Velocity is speed with direction and is a vector.
- Objects moving at the same speed can have different velocities if they move in different directions.
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