WorksheetsCIRCULAR MOTION
Total questions: 23
Worksheet time: 53mins
Name
Class
Date
1.
moving or tending to move toward a center...
a)
centripetal force
b)
centrifugal force
c)
Tangent
d)
Curvature
2.
the process or act of turning or circling around something
a)
Curvature
b)
Rotation
c)
Radius
d)
Orbit
3.
Which bucket has more inertia?
a)
The bucket on the left because it has less mass
b)
The bucket on the right because it has more mass
c)
They have the same inertia
d)
The bucket on the right because it has less mass
4.
Which bucket would take less force?
a)
The bucket on the left because it has less mass
b)
The bucket on the right because it has more mass
c)
They have the same inertia
d)
The bucket on the left because it has more mass
5.
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
6.
What is the formula for force?
a)
F=M/A
b)
F=A/M
c)
F=M*A
d)
F=M*F
7.
Is it possible for an object moving with a constant speed to accelerate? Explain.
A) No, if the speed is constant then the acceleration is equal to zero. B) No, an object can accelerate only if there is a net force acting on it.
C) Yes, although the speed is constant, the direction of the velocity can be changing.
D) Yes, if an object is moving it can experience acceleration
A) No, if the speed is constant then the acceleration is equal to zero. B) No, an object can accelerate only if there is a net force acting on it.
C) Yes, although the speed is constant, the direction of the velocity can be changing.
D) Yes, if an object is moving it can experience acceleration
a)
A
b)
B
c)
C
d)
D
8.
An object moves in a circular path at a constant speed. Compare the direction of the object's velocity and acceleration vectors.
A) Both vectors point in the same direction.
B) The vectors point in opposite directions.
C) The vectors are perpendicular.
D) The question is meaningless, since the acceleration is zero
A) Both vectors point in the same direction.
B) The vectors point in opposite directions.
C) The vectors are perpendicular.
D) The question is meaningless, since the acceleration is zero
a)
A
b)
B
c)
C
d)
D
9.
When an object experiences uniform circular motion, the direction of the acceleration is
A) in the same direction as the velocity vector.
B) in the opposite direction of the velocity vector.
C) is directed toward the center of the circular path. D) is directed away from the center of the circular path.
A) in the same direction as the velocity vector.
B) in the opposite direction of the velocity vector.
C) is directed toward the center of the circular path. D) is directed away from the center of the circular path.
a)
A
b)
B
c)
C
d)
D
10.
What type of acceleration does an object moving with constant speed in a circular path experience?
A) free fall
B) constant acceleration
C) linear acceleration
D) centripetal acceleration
A) free fall
B) constant acceleration
C) linear acceleration
D) centripetal acceleration
a)
A
b)
B
c)
C
d)
D
11.
When an object experiences uniform circular motion, the direction of the net force is A) in the same direction as the motion of the object.
B) in the opposite direction of the motion of the object.
C) is directed toward the center of the circular path. D) is directed away from the center of the circular path.
B) in the opposite direction of the motion of the object.
C) is directed toward the center of the circular path. D) is directed away from the center of the circular path.
a)
A
b)
B
c)
C
d)
D
12.
An object moves with a constant speed of 30 m/s on a circular track of radius 150 m. What is the magnitude of the acceleration of the object?
A) zero
B) 0.17 m/s2
C) 5.0 m/s2
D) 6.0 m/s2
A) zero
B) 0.17 m/s2
C) 5.0 m/s2
D) 6.0 m/s2
a)
A
b)
B
c)
C
d)
D
13.
A car is negotiating a flat curve of radius 50 m with a speed of 20 m/s. The centripetal force provided by friction is 1.2 E4 N. What is the mass of the car?
A) 500 kg
B) 1000 kg
C) 1500 kg
D) 2000 kg
A) 500 kg
B) 1000 kg
C) 1500 kg
D) 2000 kg
a)
A
b)
B
c)
C
d)
D
14.
Bruno the bat has a mass of 0.58 kg and flies at a speed of 0.8 m/s in circle of radius 0.5 m. What is his acceleration?
a)
0.25 m/s2
b)
1.3 m/s2
c)
1.6 m/s2
d)
0.74 m/s2
15.
A particle P is moving in a circle with uniform speed. Which one of the following diagrams correctly shows the direction of the acceleration a and velocity v of the particle at one instant of time?
a)
A
b)
B
c)
C
d)
D
16.
What is the direction of the velocity at point B, if the ball is revolving clockwise?
a)
up
b)
right
c)
down
d)
left
17.
What is the direction of the acceleration at point A, if the ball is revolving clockwise?
a)
up
b)
right
c)
down
d)
left
18.
The velocity is always _____ to the line of a circle.
a)
outwards
b)
towards the center
c)
tangent
d)
faster
19.
Which statement is true about an object that is traveling in uniform circular motion?
a)
The speed of the object varies.
b)
The net force on the object is directed toward the center of the circular path.
c)
The direction of the object's velocity is constant.
d)
The net force on the object is directed away from the center of the circular path.
20.
What is the direction of the velocity at point A, if the ball is revolving clockwise?
a)
up
b)
right
c)
down
d)
left
21.
A race car completes three laps of a circular track with a radius of 35 m in 9.0 seconds. Determine the speed of the car.
a)
3.9 m/s
b)
73.3 m/s
c)
24.4 m/s
d)
1.0 m/s
22.
Why do objects experience centripetal acceleration?
a)
Because they are speeding up as they move in a circle
b)
Because they are constantly changing direction and the net change is directed inward
c)
Because they are constantly changing both speed and direction
d)
Because when you have 100 people pedaling, you can speed up more easily.
23.
Which of the following is the unit for centripetal force?
a)
J
b)
m/s2
c)
kg⋅m/s
d)
N
100 %
