WorksheetsRotational Motion
Total questions: 20
Worksheet time: 25mins
The number of complete revolutions per second is:
frequency
period
torque
rotational inertia
The time required for one complete revolution is:
torque
frequency
period
rotational kinetic energy
The drum of a washing machine rotates 1800 times in 3 minutes. What is the period?
0.1 s
0.2 s
0.3 s
0.5 s
What is the velocity formula for uniform circular motion?
If the radius of the string is .3 meters long and the stopper makes 5 revolutions per second, what is the speed of the stopper? (T = period = time for ONE revolution, not 5)
9.4 m/s
6.8 m/s
11.7 m/s
3.5 m/s
what is the centripetal acceleration formula?
What's the centripetal acceleration of a .2 kg yoyo spun in a circle with a radius of .7 meters at a velocity of 3 m/s?
8.23 m/s2
10.54 m/s2
12.86 m/s2
17.39 m/s2
What's the centripetal acceleration of an object traveling 2.3 m/s around a circle of diameter 0.6 m?
5 m/s2
17.63 m/s2
10 m/s2
8.81 m/s2
Calculate the centripetal force required to make a 5 kg ball move 4 m/s in a circle with a radius of 2 m.
10 N
20 N
30 N
40 N
Calculate the mass of an object if it took 20 N to rotate it in a circle with a radius of 2 meters with a velocity of 4 m/s.
F = ma
4.1 kg
3.6 kg
2.5 kg
1.8 kg
You are moving a ball in a circle using 72 N of centripetal force. What would the force be if you doubled the radius of the circle.
18 N
36 N
72 N
144 N
A ball on a string is spun around in a circle. Which of the following quantities is not constant?
mass
force
velocity
acceleration
A 10kg car travels at a constant speed of 20.0 m/s around a horizontal circular track. Which diagram correctly represent the direction of the car's velocity (v) and the direction of the centripetal force (Fc) acting on the car at a particular moment?
