Force and Pressure MCQs Class 8 Science
Force and Pressure MCQs – Class 8 Science
CBSE Board Examination Practice
Class: 8
Subject: Science
Section: Force and Pressure
Topic: Force and Pressure MCQs
Subject: Science
Section: Force and Pressure
Topic: Force and Pressure MCQs
These Multiple Choice Questions (MCQs) are designed strictly as per the NCERT syllabus, making them ideal for CBSE Class 8 Science examination standard.
1. A push or pull acting on an object is called:
Answer: B. Force
Explanation: Force is any push or pull that can change the shape, speed, or direction of an object.
Explanation: Force is any push or pull that can change the shape, speed, or direction of an object.
2. SI unit of force is:
Answer: C. Newton
Explanation: Force is measured in Newton (N), named after Sir Isaac Newton.
Explanation: Force is measured in Newton (N), named after Sir Isaac Newton.
3. Force can change the:
Answer: D. All of these
Explanation: Force affects motion and structure of objects.
Explanation: Force affects motion and structure of objects.
4. Contact force example is:
Answer: C. Muscular force
Explanation: It requires physical contact.
Explanation: It requires physical contact.
5. Non‑contact force example:
Answer: C. Gravitational force
Explanation: Acts without physical contact.
Explanation: Acts without physical contact.
6. Force per unit area is called:
Answer: B. Pressure
Explanation: Pressure = Force / Area.
Explanation: Pressure = Force / Area.
7. SI unit of pressure is:
Answer: B. Pascal
Explanation: Named after Blaise Pascal.
Explanation: Named after Blaise Pascal.
8. Pressure increases when area:
Answer: B. Decreases
Explanation: Smaller area → greater pressure.
Explanation: Smaller area → greater pressure.
9. Pressure exerted by liquids is called:
Answer: B. Liquid pressure
Explanation: Liquids exert pressure in all directions.
Explanation: Liquids exert pressure in all directions.
10. Pressure increases with depth because:
Answer: A
Explanation: Deeper layers bear more liquid weight.
Explanation: Deeper layers bear more liquid weight.
11. Atmospheric pressure is due to:
Answer: B. Air
Explanation: Air exerts pressure due to its weight.
Explanation: Air exerts pressure due to its weight.
12. Device to measure pressure:
Answer: A. Barometer
Explanation: Measures atmospheric pressure.
Explanation: Measures atmospheric pressure.
13. Sharp knives cut easily because:
Answer: C
Explanation: Smaller contact area increases pressure.
Explanation: Smaller contact area increases pressure.
14. Camel walks easily on sand due to:
Answer: B
Explanation: Large area reduces pressure.
Explanation: Large area reduces pressure.
15. Force that opposes motion:
Answer: B. Friction
Explanation: It resists movement between surfaces.
Explanation: It resists movement between surfaces.
16. Gas pressure is due to:
Answer: B
Explanation: Moving gas particles hit container walls.
Explanation: Moving gas particles hit container walls.
17. Pressure in liquids acts in:
Answer: C
Explanation: Liquids exert pressure equally in all directions.
Explanation: Liquids exert pressure equally in all directions.
18. Atmospheric pressure decreases with:
Answer: B
Explanation: Air becomes thinner at higher altitudes.
Explanation: Air becomes thinner at higher altitudes.
19. Unit Newton is used for measuring:
Answer: B
Explanation: Force SI unit is Newton.
Explanation: Force SI unit is Newton.
20. Pressure depends on force and:
Answer: A
Explanation: Pressure = Force ÷ Area.
Explanation: Pressure = Force ÷ Area.
