Forces & Motion Final Exam Final Review

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1. Which of the following best describes Newton's Third Law of Motion?

• - A) An object at rest stays at rest unless acted on by a force.
• - B) The acceleration of an object depends on the mass of the object and the amount of force applied.
• - C) For every action, there is an equal and opposite reaction.
• - D) The force of gravity acts between all objects in the universe.

2. What is the primary factor that affects the gravitational force between two objects?

• - A) Their speed
• - B) Their volume
• - C) Their mass
• - D) Their color

3. If the net force acting on a stationary object is zero, what will happen to the object?

• - A) It will start moving.
• - B) It will remain stationary.
• - C) It will change its shape.
• - D) It will rotate.

4. Which scenario demonstrates an unbalanced force?

• - A) A book resting on a table
• - B) A car accelerating on a highway
• - C) A satellite orbiting Earth at constant speed
• - D) A person sitting in a chair

5. What happens to an object in motion if no external forces act upon it?

• - A) It will come to a stop.
• - B) It will continue moving at a constant speed in a straight line.
• - C) It will change direction.
• - D) It will accelerate.

6. Which of these is an example of a non-contact force?

• - A) Friction
• - B) Tension
• - C) Gravity
• - D) Normal force

7. How does increasing the mass of an object affect its gravitational force?

• - A) It decreases the gravitational force.
• - B) It has no effect on the gravitational force.
• - C) It increases the gravitational force.
• - D) It changes the direction of the gravitational force.

8. What is the effect of friction on a moving object?

• - A) It speeds up the object.
• - B) It slows down the object.
• - C) It changes the object's color.
• - D) It increases the object's mass.

9. Which of the following is true about magnetic forces?

• - A) They only attract objects.
• - B) They only repel objects.
• - C) They can both attract and repel objects.
• - D) They have no effect on objects.