Unit test force and motion

Answer 1

Unit Test: Force and Motion

Instructions: Please read each question carefully and select the correct answer from the provided options. There is only one correct answer for each question.

1. Which of the following is NOT a force?
a. Gravity
b. Friction
c. Velocity
d. Magnetism

2. Which of Newton's laws states that an object at rest will stay at rest, and an object in motion will stay in motion unless acted upon by an external force?
a. Newton's First Law of Motion
b. Newton's Second Law of Motion
c. Newton's Third Law of Motion
d. Newton's Law of Inertia

3. When the net force acting on an object is zero, the object is in:
a. Balanced motion
b. Unbalanced motion
c. Constant motion
d. Equilibrium

4. What is the SI unit of force?
a. Newton
b. Kilogram
c. Meter
d. Second

5. Which of the following factors affect the amount of friction between two objects?
a. Mass and velocity
b. Mass and surface area
c. Velocity and surface area
d. Velocity and acceleration

6. If an object is accelerating, which of the following statements is true?
a. The net force acting on it is zero.
b. The net force acting on it is negative.
c. The net force acting on it is positive.
d. The net force acting on it is constant.

7. Which of the following statement(s) is/are true about Newton's Third Law of Motion?
I. For every action, there is an equal and opposite reaction.
II. The forces involved act on the same object.
III. The action and reaction forces are always of different types.
a. Only I
b. I and II
c. I and III
d. I, II, and III

8. What happens to the acceleration of an object if the net force acting on it is doubled?
a. It remains the same.
b. It is halved.
c. It is doubled.
d. It quadruples.

9. Which of the following is an example of a non-contact force?
a. Friction
b. Gravitational force
c. Elastic force
d. Tension force

10. Which of the following statements is true about the relationship between force, mass, and acceleration?
a. Increased force increases mass and acceleration.
b. Increased force decreases mass and acceleration.
c. Increased force increases mass and decreases acceleration.
d. Increased force decreases mass and increases acceleration.

Answer Key:
1. c
2. a
3. d
4. a
5. b
6. c
7. b
8. c
9. b
10. d