Unit Test: Force and Motion

Answer 1

1. What is the formula for force?
a) F = ma
b) F = mv
c) F = ma^2
d) F = m/v

2. Which of the following is an example of a contact force?
a) Gravitational force
b) Magnetic force
c) Frictional force
d) Electrostatic force

3. A car traveling at a constant speed around a circular track is an example of which type of motion?
a) Uniform motion
b) Accelerated motion
c) Circular motion
d) Random motion

4. Which of the following is NOT an example of a balanced force?
a) A person pushing a cart forward with a force of 10 N, while another person pulls the cart backward with a force of 10 N
b) A book resting on a table
c) A rocket launching into space
d) A soccer ball being kicked with a force of 10 N

5. If a force of 20 N is applied to an object with a mass of 5 kg, what is the acceleration of the object?
a) 4 m/s^2
b) 10 m/s^2
c) 20 m/s^2
d) 25 m/s^2

6. Which of the following is an example of a non-contact force?
a) Frictional force
b) Gravitational force
c) Applied force
d) Normal force

7. According to Newton's second law of motion, the acceleration of an object is directly proportional to what?
a) Its mass
b) Its velocity
c) The force applied to it
d) Both its mass and the force applied to it

8. Which of the following is an example of projectile motion?
a) A car driving in a straight line
b) A ball rolling down a hill
c) A rocket launching into space
d) A bird flying in the sky

9. If an object is at rest, which of the following is true?
a) There are no forces acting on the object
b) The net force acting on the object is zero
c) The object is experiencing balanced forces
d) The object has no mass

10. Which of the following statements is true about inertia?
a) Inertia is the tendency of an object to resist changes in its motion
b) Inertia is the force that causes objects to move
c) Inertia is directly proportional to an object's mass
d) Inertia can only be observed in moving objects