CHAPTER ASSESSMENT

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

• A. Force equals mass times acceleration
• B. For every action, there is an equal and opposite reaction
• C. An object in motion stays in motion unless acted upon by a net external force
• D. Acceleration is proportional to velocity

2. Why do passengers lurch forward when a bus suddenly stops?

• A. Due to gravity
• B. Due to acceleration
• C. Due to Newton’s Third Law
• D. Due to inertia (Newton’s First Law)

3. Newton’s Second Law of Motion is represented by which equation?

• A. F = mv
• B. F = ma
• C. F = m/g
• D. F = v/t

4. When a bat hits a ball, the ball exerts a force back on the bat. This is an example of:

• A. Newton’s First Law
• B. Newton’s Second Law
• C. Newton’s Third Law
• D. Gravitational law

5. What does Newton's First Law of Motion state about objects at rest?

• A. They will eventually move on their own
• B. They stay at rest unless acted on by a net external force
• C. They constantly accelerate
• D. They resist all forces

6. Which situation demonstrates Newton’s Second Law?

• A. A book remains on a table
• B. A swimmer pushing against the water and moving forward
• C. A soccer ball accelerates when kicked
• D. A satellite orbits the Earth due to gravity

7. If you apply the same force to two objects with different masses, which one accelerates more?

• A. The heavier object
• B. The lighter object
• C. Both accelerate the same
• D. Neither object accelerates

8. Which of these best describes an action-reaction force pair?

• A. A car stops due to brakes
• B. A hammer hits a nail and the nail pushes back
• C. A balloon bursts
• D. A leaf falls from a tree

9. A car suddenly stops, and the passengers move forward. Which law explains this?

• A. Newton’s Second Law
• B. Newton’s Third Law
• C. Newton’s First Law
• D. Law of Gravitation

10. What happens to acceleration if mass increases but force remains the same?

• A. It increases
• B. It decreases
• C. It stays the same
• D. It becomes zero