WorksheetsCircular Motion and Energy Quiz
Total questions: 15
Worksheet time: 8mins
Name
Class
Date
1.
In uniform circular motion, what remains constant?
a)
Acceleration
b)
Speed
c)
Momentum
d)
Velocity
2.
Why does an object in circular motion experience acceleration even with constant speed?
a)
Mass increases
b)
Radius decreases
c)
Direction of velocity changes
d)
Speed increases
3.
The centripetal acceleration formula ac = v²/r depends on which two variables?
a)
Force and time
b)
Mass and velocity
c)
Velocity and radius
d)
Mass and radius
4.
What does the centripetal force always point toward?
a)
Center of the circle
b)
Tangent of the circle
c)
Direction of motion
d)
Outside of the circle
5.
If the period of rotation is T, how can velocity be calculated?
a)
v = 2πr/T
b)
v = πr/T
c)
v = 4πr/T
d)
v = r/T
6.
What is the relationship between frequency (f) and period (T)?
a)
f = T²
b)
f = 1/T
c)
f = 2T
d)
f = T
7.
In the equation torque = rF⊥, what does F⊥ represent?
a)
Perpendicular force component
b)
Total force
c)
Parallel force
d)
Radial force
8.
Which component of force contributes to torque?
a)
Tangential force
b)
Force perpendicular to radius
c)
Total force
d)
Force parallel to radius
9.
In the energy conservation example with the boulder, what remains constant?
a)
Mass
b)
Kinetic energy
c)
Potential energy
d)
Total energy
10.
Power is defined as:
a)
Energy multiplied by time
b)
Force times distance
c)
Work divided by time
d)
Velocity squared
11.
What happens to potential energy as an object falls?
a)
Remains constant
b)
Increases
c)
Decreases
d)
Becomes zero
12.
The formula KE = ½mv² represents:
a)
Kinetic energy
b)
Power
c)
Total energy
d)
Potential energy
13.
Work done against gravity is calculated by:
a)
W = ½mv²
b)
W = F × d
c)
W = mgh
d)
W = Pt
14.
In circular motion, as radius increases and velocity remains constant, what happens to centripetal acceleration?
a)
Increases
b)
Remains constant
c)
Becomes zero
d)
Decreases
15.
What does the sin θ term represent in torque calculation?
a)
Rotational speed
b)
Radial distance
c)
Perpendicular force component
d)
Total force
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