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circular motion

Total questions: 10

Worksheet time: 10mins

Name
Class
Date
1.
When an object is in circular motion it is constantly changing its velocity.
a)
True
b)
False
2.
As the moon orbits the earth, what keeps the moon moving in a circular motion?
a)
Gravity
b)
Inertia
c)
Centripetal Force
d)
Friction
3.
As this ride starts to spin in a circular motion the swings move outward.  What is the cause of this outward motion
a)
Gravity
b)
Centripetal Force
c)
Speed
d)
Inertia
4.

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)
5.
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
6.
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
a)
4.1 kg
b)
3.6 kg
c)
2.5 kg
d)
1.8 kg
7.

A satellite is orbiting the Earth at a speed of 1200m/s, find the radius of revolution if the Time period is 35000s

a)

1200

b)

67km

c)

6700Km

d)

35000

8.

During its trip a car of mass 1500kg is traveling around a corner as shown in the picture. The car rounds a corner of radius 100m at a speed of 15m/s. Find the centripetal acceleration

a)

22.5m/s

b)

2.25m.s

c)

15m/s

d)

32.5m/s

9.

During its trip a car of mass 1500kg is traveling around a corner as shown in the picture. The car rounds a corner of radius 100m at a speed of 15m/s. Find the centripetal force acting on the car.

a)

300N

b)

15000N

c)

3375N

d)

15N

10.

During its trip a car of mass 1500kg is traveling around a corner as shown in the picture. What actual force is equivalent to the centripetal force in this situation?

a)

Tension

b)

Friction

c)

Centrifugal force

d)

gravity