Angular Acceleration Problems In Physics -Multiple Choice Questions Quiz

Question 1: A wheel initially at rest accelerates uniformly to an angular velocity of 30 rad/s in 5 seconds. What is the angular acceleration of the wheel?

(a) 6 rad/s²
(b) 10 rad/s²
(c) 15 rad/s²
(d) 30 rad/s²

Question 2: A rotating disc goes from rest to 1200 rpm in 10 seconds. What is its angular acceleration in rad/s²?

(a) 40π rad/s²
(b) 60π rad/s²
(c) 80π rad/s²
(d) 100π rad/s²

Question 3: A flywheel slows down from an angular velocity of 100 rad/s to 50 rad/s in 4 seconds. What is its angular acceleration in rad/s²?

(a) -12.5 rad/s²
(b) -25 rad/s²
(c) -50 rad/s²
(d) -100 rad/s²

Question 4: A wheel's angular velocity increases uniformly from 10 rad/s to 30 rad/s in 2 seconds. What is its angular acceleration in rad/s²?

(a) 10 rad/s²
(b) 15 rad/s²
(c) 20 rad/s²
(d) 25 rad/s²

Question 5: A spinning top slows down from an angular velocity of 40 rad/s to 10 rad/s in 5 seconds. What is its angular acceleration in rad/s²?

(a) -10 rad/s²
(b) -6 rad/s²
(c) -6π rad/s²
(d) -10π rad/s²

Question 6: A rotating wheel goes from 120 rad/s to 60 rad/s in 4 seconds. What is its angular acceleration in rad/s²?

(a) -15 rad/s²
(b) -20 rad/s²
(c) -30 rad/s²
(d) -40 rad/s²

Question 7: A disc initially rotating at 6 rad/s comes to rest in 3 seconds. What is its angular acceleration in rad/s²?

(a) -2 rad/s²
(b) -4 rad/s²
(c) -6 rad/s²
(d) -8 rad/s²

Question 8: A bicycle wheel slows down from 15 rad/s to 5 rad/s in 2 seconds. What is its angular acceleration in rad/s²?

(a) -5 rad/s²
(b) -7.5 rad/s²
(c) -10 rad/s²
(d) -12.5 rad/s²

Question 9: A gyroscope's angular velocity increases uniformly from 50 rad/s to 100 rad/s in 5 seconds. What is its angular acceleration in rad/s²?

(a) 10 rad/s²
(b) 20 rad/s²
(c) 30 rad/s²
(d) 40 rad/s²

Question 10: A rotating disc goes from 10 rad/s to 20 rad/s in 3 seconds. What is its angular acceleration in rad/s²?

(a) 3.33 rad/s²
(b) 6.67 rad/s²
(c) 10 rad/s²
(d) 13.33 rad/s²

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Total score: /10

Answer key:

Question 1: a

Question 2: c

Question 3: a

Question 4: b

Question 5: b

Question 6: a

Question 7: b

Question 8: c

Question 9: b

Question 10: b