Chapter 7A Test Review - Part 1

Front

What is the rate at which a body rotates about an axis called?

Back

Angular speed.

Front

Which object illustrates rotational motion?

Back

The Moon orbiting the Earth.

Front

If a wheel starts from rest and accelerates at 6 rad/s² for 3 seconds, what is its final angular speed?

Back

18 rad/s.

Front

What force is required for a body to travel in a circular path?

Back

Centripetal force.

Front

What is the angle that a point, line, or body forms with respect to some fixed axis called?

Back

Angular position.

Front

Define angular acceleration.

Back

The rate of change of angular speed over time.

Front

What is the formula for calculating angular speed?

Back

Angular speed (ω) = Angular displacement (θ) / Time (t).

Front

What is the difference between angular speed and angular acceleration?

Back

Angular speed measures how fast an object rotates, while angular acceleration measures how quickly the angular speed changes.

Front

What is centripetal force?

Back

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

Front

How does angular displacement differ from linear displacement?

Back

Angular displacement measures the angle through which an object has rotated, while linear displacement measures the distance moved in a straight line.