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Physics: Uniform Circular Motion

Total questions: 15

Worksheet time: 19mins

Name
Class
Date
1.
The time taken for one complete circuit is called the... 
a)
Period
b)
Frequency 
c)
Angular velocity
2.
Centripetal acceleration always points
a)
in the direction of the object's motion
b)
in the opposite direction of the object's motion
c)
towards the center of the circle
d)
towards the outside of the circle
3.
What is the direction of the velocity at point B, if the ball is revolving clockwise?
a)
up
b)
right
c)
down
d)
left
4.
Calculate the velocity of an object moved around a circle with a radius of 1.65 m and an acceleration of 3.5 m/s2.
a)
2.4 m/s
b)
3.6 m/s
c)
3.9 m/s
d)
4.2 m/s
5.
The velocity is always _____ to the line of a circle. 
a)
outwards
b)
towards the center
c)
tangent
d)
faster
6.
You swing a bucket of water attached to a string in a circle above your head. What keeps the water in the bucket?
a)
Friction
b)
Centripetal Force
c)
Gravity
d)
Inertia
7.

Bruno the bat flies at a speed of 0.5 m/s in circle of radius 1 m. What is his acceleration?

ac= v2/r

a)
0.25 ms-2
b)
0.5 ms-2
c)
1 ms-2
d)
2 ms-2
8.
Centrifugal force is a ______
a)
force that pushes you to the outside of a circle during uniform circular motion.
b)
fictitious force that is really just the linear momentum of an object in uniform circular motion.  
c)
The force that keeps the planets in orbit
9.

What's the centripetal acceleration of an object traveling 2 m/s around a circle of diameter 1 m?

a)

4 m/s2

b)

8 m/s2

c)

10 m/s2

d)

16 m/s2

10.

What is the velocity formula for uniform circular motion?

a)
b)
c)
d)
11.

what is the centripetal acceleration formula?

a)
b)
c)
d)
12.
Centripetal acceleration is ...
a)
Acceleration toward the center of a curved or circular path
b)
Acceleration toward the outside of a circle
c)
Vertical motion instead of horizontal motion
13.

A toy car is following a circular path with a constant speed of v=3 m/s . If the radius of the circular path is 1 m, find The centripetal acceleration of the car

a)

30 m/s2

b)

3 m/s2

c)

9 m/s2

d)

6 m/s2

14.
Which of the following is the unit for centripetal force?
a)
J
b)
m/s2
c)
kg⋅m/s
d)
N
15.

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?

a)
b)
c)
d)