# MCQ worksheet – Force (Physics) | Multiple Choice Questions from the Force chapter – physics

## MCQ worksheet – Fundamentals of Force

1 ) Force can cause a
a. stationary object to start moving.
b. moving object to change speed.
c. moving object to change direction.
d. all of the above

2) Examples of forces include
a. motion.
b. friction.
c. acceleration.
d. two of the above

3) If gravity pulls you down toward the center of Earth with a force of 500 N, how much upward force does the ground exert on you?
a. 0 N
b. 50 N
c. 500 N
d. none of the above

4) In the following sketch, what is the net force acting on the box?

5) Which diagram represents balanced forces?

6) Which pair of forces in question 5 differ from each other in both strength and direction?
a. a
b. b
c. c
d. d

7) Which pair of forces in question 5 produces a net force of zero?
a. a
b. b
c. c
d. d

1. d
2. b
3. c
4. c
5. a
6. b
7. a

## MCQ worksheet – Friction or frictional force

1) Friction occurs because
a. all surfaces have some roughness.
b. surfaces in contact generate heat.
c. chemical reactions take place when surfaces touch.
d. none of the above

2 ) Which factors affect friction?
a. roughness of the surfaces
b. area of the surfaces
c. force of weight pressing on the surfaces
d. two of the above

3 ) If you pick up and carry a piece of heavy furniture, which type of friction do you have with the floor?
a. static friction
b. lifting friction
c. sliding friction
d. rolling friction

3 ) Why is it easier to slide a heavy box over a floor than it is to start it sliding in the first place?
a. The box is lighter when it is sliding.
b. The box has less mass when it is moving.
c. The box has no friction when it is stationary.
d. The box has less friction when it is sliding.

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4 ) Which statement about rolling friction is false?
a. It would be hard to ride a bike without it.
b. It occurs when ball bearings are used.
c. It is stronger than sliding friction.
d. It is weaker than static friction.

5 ) A skydiver uses a parachute to
a. increase air resistance.
b. cushion the landing.
c. slow the descent.
d. two of the above

6 ) Which type of friction occurs between a paddle and the water?
a. static friction
b. sliding friction
c. fluid friction
d. rolling friction

1. a
2. d
3. a
4. d
5. c
6. d
7. c

## MCQ worksheet – Gravity

1 ) Gravity always causes objects to
a. repel each other.
b. circle each other.
c. attract each other.
d. two of the above

2 ) Unlike friction, gravity
a. is a force.
b. acts over a distance.
c. acts between objects that are not touching.
d. two of the above

3 ) What does weight measure?
a. size
b. mass
c. force
d. volume

4 ) Jody has a mass of 50 kilograms. What is his weight on Earth?
a. 5 N
b. 50 N
c. 500 N
d. 5000 N

5 ) There is gravity between you and
a. Earth.
b. the moon.
d. all of the above

6 ) The moon orbits Earth rather than the sun because
a. the sun’s gravity is weaker than Earth’s.
b. the moon is smaller than Earth.
c. Earth already orbits the sun.
d. the moon is closer to Earth.

7 ) An object with greater mass
a. has greater acceleration when it falls.
b. has a weaker force of gravity.
c. is less affected by gravity.
d. has greater weight.

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### Multiple Choice Answers for MCQ worksheet – Gravity

1. c
2. d
3. c
4. c
5. d
6. d
7. d
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