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WorksheetsCircular Motion Review - with Vertical
Total questions: 24
Worksheet time: 41mins
Name
Class
Date
1.
Which of the following vectors depicts the tangential speed of the blowing ball?
a)
A
b)
B
c)
C
d)
D
2.
A horse gallops around a circular arena. The centripetal force on the horse is ___.
a)
directed outward
b)
tension
c)
directed toward the center of the arena
d)
9.8 N
3.
What relationship exists between the radius of a circle and the centripetal acceleration?
a)
direct
b)
inverse
c)
exponential
d)
inverse squared
4.
Calculate the amount of centripetal force it takes for a softball pitcher to rotate a ball with a velocity of 3 m/s if the ball weighs 0.12 kg and her arm is 0.65 meters long.
a)
.38
b)
1.23
c)
.55
d)
1.66 N
5.
A car traveling at 15 m/s on a flat surface turns in a circle with a radius of 25 m. What is the centripetal acceleration of the car?
a)
2.4 x 10-2 m/s2
b)
0.60 m/s2
c)
9.0 m/s2
d)
zero
6.
Which of the following terms means "center seeking"?
a)
centrifugal
b)
centrifuge
c)
centripetal
d)
centenarian
7.
What is the relationship between centripetal force and the mass of an object?
a)
direct
b)
inverse
c)
exponential
d)
inverse squared
8.
In a ride that causes you to stick to the wall, what acts as the CENTRIPETAL FORCE ?
a)
Friction
b)
Gravity
c)
Normal
d)
momentum
9.
What are the forces that causes centripetal acceleration when a car goes around a banked curve?
a)
Friction & Normal
b)
Gravity & Friction
c)
Normal & Gravity
d)
Tension & Gravity
10.
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 but did not change the speed?
a)
18 N
b)
36 N
c)
72 N
d)
144 N
11.
Assuming the Andromeda galaxy rotates at a uniform rate, which stars have the largest linear velocity?
a)
Stars closest to center
b)
Stars furthest from the center
c)
Stars with the hottest temperature
d)
Stars with the coldest temperature
12.
What is the difference between rotation and revolution?
a)
Rotation is around another object while revolution is around its own axis.
b)
Rotation is on its own axis while revolution is around another object.
c)
They are the same
d)
Rotation is faster
13.
What is the difference between centripetal and centrifugal forces?
a)
Centripetal is towards center while centrifugal is away from the center.
b)
Centrifugal is towards center while centripetal is away from the center.
c)
Both are correct
d)
None of the above are correct
14.
This is typically just the momentum of a revolving object, but is mistaken for a force:
a)
centripetal force
b)
centripetal acceleration
c)
centrifugal force
d)
gravity
15.
What is the speed of a car traveling around a circle of 20 m radius once every 4.2 seconds?
a)
9.5 m/s
b)
30 m/s
c)
4.8 m/s
d)
125 m/s
16.
Which arrow represents the acceleration of the ball?
a)
A
b)
B
c)
C
d)
D
17.
Which equation is the right relationship when you are at the bottom of a Ferris Wheel ride?
a)
Fg = Fc - Fn
b)
Fc = Fn - Fg
c)
Fc = Fg - Fn
d)
Fg = Fn + Fc
18.
The moon and other satellites revolve around the earth. Identify the force that keeps these satellites in orbit.
a)
gravity
b)
friction
c)
a strong force
d)
electromagnetic force
19.
Where is the net force directed when the roller coaster is at the top of the loop?
a)
Towards the sky
b)
Towards the Right
c)
Towards the left
d)
Towards the ground
20.
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
21.
A particularly scary roller coaster contains a loop-the-loop in which the car and rider are completely upside down. If the radius of the loop is 13.2 m with what minimum speed must the car traverse the loop so that the rider does not fall out while upside down at the top? Assume the rider is not strapped to the car.
a)
11.4 m/s
b)
12.5 m/s
c)
10.1 m/s
d)
14.9 m/s
22.
When the car is at the top of the loop it just maintains contact with the tract. What is the car's acceleration at this point?
a)
g upwards
b)
0.5g upwards
c)
zero
d)
g downwards
23.
A motor cyclist loops a vertical circular loop of diameter 18 m. What should be his minimum speed at the highest point of the loop?
a)
9.4 m/s
b)
16 m/s
c)
21 m/s
d)
30 m/s
24.
A Ferris wheel has radius 5.0 m and makes one revolution every 8.0 s. A person who normally weighs 670 N is sitting on one of the benches attached at the rim of the wheel. What is the apparent weight (the normal force exerted on her by the bench) of the person as she passes through the highest point of her motion?
a)
460 N
b)
132 N
c)
763 N
d)
284 N
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