Physics Test | Class 9 Physics

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Class: 9th
Subject: Physics (SNC)
Chapter: 9 – Nature of Science

Test Date: Current Date
Time Allowed: 60 minutes
Total Marks: 50
Paper Type: Objective + Subjective

Multiple Choice Questions (10×1 = 10 Marks)

1. What is the scope of physics in technology?
   (A) Limited
   (B) Vast
   (C) Narrow
   (D) Small
2. Which field of physics deals with the study of the universe?
   (A) Geology
   (B) Cosmology
   (C) Biology
   (D) Chemistry
3. Which field of physics deals with the study of sound?
   (A) Acoustics
   (B) Optics
   (C) Thermodynamics
   (D) Electromagnetism
4. What is the scope of physics in the environment?
   (A) Low
   (B) High
   (C) Medium
   (D) None of these
5. What is the scope of physics in transportation?
   (A) Limited
   (B) Vast
   (C) Narrow
   (D) None of these
6. Into how many branches is Physics divided?
   (A) 10
   (B) 12
   (C) 13
   (D) 11
7. The branch which is based on Newton’s laws and gravitation is often called:
   (A) Mechanics
   (B) Acoustics
   (C) Optics
   (D) Nuclear physics
8. Which branch of physics explains the behaviour of particles at the atomic and subatomic level?
   (A) Quantum mechanics
   (B) Classical mechanics
   (C) Both A and B
   (D) None of these
9. Physics is closely related to which field of study?
   (A) Biology
   (B) Chemistry
   (C) Mathematics
   (D) Geology
10. A well-substantiated explanation for a set of phenomena is called a:
    (A) Hypothesis
    (B) Theory
    (C) Law
    (D) Prediction

Short Answer Questions (15×2 = 30 Marks)

Answer the following questions briefly.

1. State in your own words, what is science? Write its two main groups.

2. What is Physics all about? Name some of its branches.

3. List the main steps of the scientific method.

4. What is a hypothesis? Give an example.

5. Distinguish between a theory and a law in Physics.

6. Define quantum mechanics.

7. What is the scope of physics in medicine?

8. What is the scope of physics in research?

9. Write names of branches of physics.

10. Differentiate between nuclear physics and astronomy.
11. Define solid state physics.
12. List the main steps of the scientific method.
13. What is a hypothesis? Give one example.
14. What is the purpose of an experiment in the scientific method?
15. What is a theory in the scientific method?
    ____________________________________________________

Detailed Answer Questions (Answer any 2) (2×5 = 10 Marks)

1. What is the scientific method? Describe its main steps with examples.
   Answer:

2. Describe the scope of physics in technology. Explain how physics is used in the development of computers, smartphones, and other electronic devices.
   Answer:

3. How does physics contribute to the development of modern technologies?
   Answer:

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