1. What does the study of Physics primarily involve?
Answer:
Explanation:
Physics primarily involves the study of the fundamental principles and laws governing the natural world.
2. Who is known as the father of modern physics?
Answer:
Explanation:
Albert Einstein is often referred to as the father of modern physics due to his groundbreaking contributions, especially the theory of relativity.
3. The word “Physics” originates from a Greek word which means:
Answer:
Explanation:
The term “Physics” is derived from the Greek word “physis” which means nature.
4. Which branch of Physics deals with heat and temperature?
Answer:
Explanation:
Thermodynamics is the branch of physics that deals with heat, work, and temperature.
5. Which of the following is NOT a scalar quantity?
Answer:
Explanation:
Velocity is a vector quantity as it has both magnitude and direction. The others are scalar quantities.
6. The study of motion without considering its causes is known as:
Answer:
Explanation:
Kinematics deals with the study of motion without any reference to the forces causing it.
7. Who proposed the three laws of motion?
Answer:
Explanation:
Sir Isaac Newton proposed the three foundational laws of motion.
8. Quantum mechanics primarily deals with:
Answer:
Explanation:
Quantum mechanics is the branch of physics dealing with the quantum realm, specifically particles at the atomic and subatomic scale.
9. The principle that states every action has an equal and opposite reaction is:
Answer:
Explanation:
Newton’s Third Law of Motion states that for every action, there is an equal and opposite reaction.
10. Which of the following scientists was primarily a chemist but made significant contributions to physics?
Answer:
Explanation:
Marie Curie, while being a chemist, made significant contributions to physics, especially in the field of radioactivity.
11. The phenomenon that describes the “dual” nature of light as both particle and wave is called:
Answer:
Explanation:
Wave-Particle Duality is a fundamental concept in quantum mechanics that describes light as having both particle-like and wave-like properties.
12. The branch of physics that deals with objects at rest or in uniform motion is:
Answer:
Explanation:
Classical Mechanics primarily deals with macroscopic objects either at rest or in uniform motion.
13. Which of the following is NOT a fundamental force of nature?
Answer:
Explanation:
The fundamental forces of nature are gravitational, electromagnetic, strong nuclear, and weak nuclear. Elastic force is not a fundamental force.
14. The phenomenon where certain materials produce electric voltage under mechanical stress is called:
Answer:
Explanation:
Piezoelectricity is the electric charge that accumulates in certain solid materials in response to applied mechanical stress.
15. Who is credited with the discovery of the electron?
Answer:
Explanation:
J.J. Thomson discovered the electron during experiments with cathode ray tubes.