PS Unit 1

Front

What unit is used to measure velocity?

Back

cm/s

Front

What is centripetal acceleration?

Back

Centripetal acceleration is the acceleration that occurs when an object moves in a circular path, changing direction but maintaining a constant speed.

Front

What does a distance vs. time graph represent?

Back

A distance vs. time graph shows an object's speed.

Front

How do you calculate average speed?

Back

Average speed is calculated by dividing the total distance traveled by the total time taken.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object.

Front

What happens to an object in uniform motion?

Back

An object in uniform motion travels at a constant speed in a straight line.

Front

What is the formula for calculating acceleration?

Back

Acceleration = (Final Velocity - Initial Velocity) / Time.

Front

What does a speed of 0 m/s indicate?

Back

A speed of 0 m/s indicates that the object is at rest.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

What is the significance of a flat line on a distance vs. time graph?

Back

A flat line on a distance vs. time graph indicates that the object is not moving.