Comprehensive Physics Q&A Reference Guide

High School Physics Q&A (Comprehensive Version)



1. Mechanics (Kinematics & Dynamics)

1. Q: What is distance?
A: The total path covered by an object.

2. Q: What is displacement?
A: The straight-line distance from start to end point in a specific direction.

3. Q: What is speed?
A: Distance traveled per unit time.

4. Q: What is velocity?
A: Displacement per unit time in a specific direction.

5. Q: What is acceleration?
A: Rate of change of velocity with time.

6. Q: State Newton’s First Law.
A: An object stays at rest or moves at constant speed unless a force acts on it.

7. Q: State Newton’s Second Law.
A: Force equals mass times acceleration (F = ma).

8. Q: State Newton’s Third Law.
A: Every action has an equal and opposite reaction.

9. Q: What is momentum?
A: Mass × velocity of an object.

10. Q: What is impulse?
A: Change in momentum (Impulse = Force × Time).

11. Q: What is work in physics?
A: Work = Force × Distance in the direction of force.

12. Q: What is kinetic energy?
A: Energy of a moving object (KE = ½mv²).

13. Q: What is potential energy?
A: Energy stored due to position (PE = mgh).

14. Q: What is mechanical energy?
A: Total energy of an object (ME = KE + PE).