Review for Physics QZ 6.2-6.3

Front

Centripetal acceleration always points to the _______ of the circle.

Back

center

Front

If a bus is traveling at 6 m/s and you walk at 2 m/s toward the front, what is your velocity relative to the road?

Back

8 m/s

Front

A carnival ride has a 3.0-m radius and rotates once every 1.7 s. What is the centripetal acceleration of a rider?

Back

41 m/s²

Front

If you are riding a train at 40 m/s and move toward the back at 2 m/s, what is your speed relative to the tracks?

Back

38 m/s

Front

Back

Newton's second law for circular motion

Front

Define centripetal force.

Back

The net force that acts on an object moving in a circular path, directed towards the center of the circle.

Front

What is the formula for centripetal acceleration?

Back

Front

Explain the difference between speed and velocity.

Back

Speed is a scalar quantity representing how fast an object moves, while velocity is a vector quantity that includes direction.

Front

What is the relationship between frequency and period in circular motion?

Back

Front

What is the unit of centripetal acceleration?

Back

meters per second squared (m/s²).