AP Intro to Rotation Calculations and Lab Debrief

An object completes 1.5 circular orbits in half a minute. How many radians has it gone through?

• π/s rad

• π rad

• 2π rad

• 3π rad

How many degrees are there in π radian?

• 45°

• 90°

• 180°

• 360°

What does the variable ω stand for?

• welocity

• angular velocity

• angular displacement

• angular acceleration

An object rotates through 270 degrees in 1.8 s. What is its angular velocity?

• 150 rad/s

• 47.8 rad/s

• 2.62 rad/s

• none of these is correct

A satellite orbits the earth. Describe it's motion.

• rotating

• revolving

• both

• neither

A spinning motion on an axis that's inside the moving body

• rotation

• revolution

• both

• neither

What's the unit for angular acceleration?

• rad/s²

• rad/s

• degrees/s²

• m/s

• m/s²

FBF: what causes an object to change its motion?

• a balanced net force

• inertia

• an unbalanced net force

• time