Physics Test Questions

Module 8

Find the average angular acceleration if my hard drive speeds up from 60 rpm to 90 rpm in 3.0 s

1\.05 rad/s2

Convert 3π radians per second into revolutions per minute.

90 rpm

A bicycle wheel is accelerated from rest to 6.0 rev/min over 10. seconds. What is its average angular velocity?

3\.0 rev/min

Find the average angular velocity if the angle goes from 30° to 80° in 5.0 sec in radians per second.

0\.175 rad/s

A race car does 3 full circles (360’s, or “doughnuts”) after winning the race. Through how many radians does the car turn?

18\.8

A bicycle wheel is accelerated from rest to 3 rpm over 3 seconds. What is its angular acceleration?

0\.105 rad/s^2

Convert 33 Hz to radians per sec.

207 rad/s

A wheel that is 25 cm in diameter rotates through 60°. How far has the wheel moved if there is no slipping?

13\.1 cm

A man is travelling at 25 m/s on the edge of a centrifuge device used for testing astronauts and airmen. If the arm is 20 m long, what is the angular speed of the centrifuge in rpm?

11\.9 rpm

A disk decelerates at a constant 5.00 s^-2 from 2300. rad/sec for 9.60 sec. How many radians does it turn through in this time?

21900 radians

A satellite is spun down from 25 rpm to stationary using a constant deceleration of 6.35 s^−2. How many revolutions does it make?

0\.086 rev

A bicycle wheel accelerates from rest to 60 rpm in 3 sec. How many cycles does it make in that time?

1\.5

A 3 cm radius ball rolled 12 m in 10 sec. What is its angular displacement?

400 rads

A DVD player changes speed from 0 rpm to 2800 rpm in 2 sec. How many revolutions does it make in that time?

46\.7 rev