Select the closest matching pairs possible.
- Velocity
- Acceleration
- Speed
- Centripetal Acceleration
- Circular Motion
A. Vector quantity including displacement per time with direction
B. Acceleration of an object moving in a circular path
C. Change of velocity with time
D. Velocity would have a continuously changing direction
E. Scalar quantity including displacement per time.

Velocity: A measure of how fast something is moving in a specific direction. It is a vector quantity, meaning it includes both speed and direction.
Acceleration: The rate at which an object's velocity changes over time. It can involve an increase or decrease in speed and/or a change in direction.
Speed: The rate at which an object covers distance. It is a scalar quantity, meaning it only has magnitude and no direction.
Centripetal Acceleration: The acceleration directed towards the center of a circular path that keeps an object moving in that path. It is necessary for maintaining circular motion.
Circular Motion: Movement of an object along the circumference of a circle or rotation along a circular path, where the direction of velocity constantly changes.

SayeeWilson SayeeWilson · Answer 2 · 2024-05-29T15:00:18-04:00

Velocity - A. Vector quantity including displacement per time with direction. Acceleration - C. Change of velocity with time. Speed - E. Scalar quantity including displacement per time. Centripetal Acceleration - B. Acceleration of an object moving in a circular path. Circular Motion - D. Velocity would have a continuously changing direction.

Here are the closest matching pairs with their corresponding definitions:

Velocity - Vector quantity including displacement per time with direction.
Acceleration - Change of velocity with time.
Speed - Scalar quantity including displacement per time.
Centripetal Acceleration - Acceleration of an object moving in a circular path.
Circular Motion - Velocity would have a continuously changing direction.

To summarize, velocity is a vector that needs direction, acceleration is any change in velocity divided by time, speed is a scalar with no reference to direction, centripetal acceleration describes an object moving in a circular path, and circular motion implies a changing direction of velocity.