Class 8 Science MCQ Chapter 11 Force and Pressure Solutions in English Medium, Class 8 Science Multiple Choice Question Answer in English to each chapter is provided in the list so that you can easily browse throughout different chapters Class 8 Science MCQ Chapter 11 Force and Pressure Notes and select need one.
Class 8 Science MCQ Chapter 11 Force and Pressure
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Force and Pressure
Chapter – 11
| MCQ |
1. Leaves fall down on the ground due to:
(a) electrostatic force.
(b) magnetic force.
(c) gravitational force.
(d) muscular force.
Ans: (c) gravitational force.
2. When the hammer strikes the gong of an electric bell, which of the following force is responsible for the movement of hammer?
(a) Gravitational force alone.
(b) Magnetic force alone.
(c) Electrostatic force alone.
(d) Frictional force alone.
Ans: (c) Electrostatic force alone.
3. Which one of the following forces is a contact force?
(a) Force of gravity.
(b) Magnetic force.
(c) Force of friction.
(d) Electrostatic force.
Ans: (c) Force of friction.
4. What is force?
(a) A push or pull.
(b) A type of energy.
(c) A measure of temperature.
(d) A unit of speed.
Ans: (a) A push or pull.
5. Which unit is used to measure force in the International System of Units (SI)?
(a) Newton.
(b) Joule.
(c) Pascal.
(d) Watt.
Ans: (a) Newton.
6. Pressure is defined as:
(a) Force per unit area.
(b) Mass per unit volume.
(c) Energy per unit time.
(d) Volume per unit mass.
Ans: (a) Force per unit area.
7. What is the SI unit of pressure?
(a) Newton per square meter.
(b) Joule.
(c) Meter per second.
(d) Kilogram.
Ans: (a) Newton per square meter.
8. If a force of 10 N is applied to an area of 2 m², what is the pressure?
(a) 5 Pa.
(b) 20 Pa.
(c) 10 Pa.
(d) 2 Pa.
Ans: (a) 5 Pa.
9. What does Pascal’s principle state?
(a) Pressure applied to an enclosed fluid is transmitted equally in all directions.
(b) Force is equal to mass times acceleration.
(c) Energy cannot be created or destroyed.
(d) Pressure is inversely proportional to volume.
Ans: (a) Pressure applied to an enclosed fluid is transmitted equally in all directions.
10. What is the formula for calculating pressure?
(a) Pressure = Force × Area.
(b) Pressure = Force / Area.
(c) Pressure = Area / Force.
(c) Pressure = Mass × Acceleration.
Ans: (b) Pressure = Force / Area.
11. Which of the following is an example of a contact force?
(a) Gravitational force.
(b) Magnetic force.
(c) Frictional force.
(d) Electrostatic force.
Ans: (c) Frictional force.
12. What kind of force is gravity?
(a) Contact force.
(b) Non-contact force.
(c) Applied force.
(d) Tension force.
Ans: (b) Non-contact force.
13. In which direction does atmospheric pressure act?
(a) Downwards only.
(b) Upwards only.
(c) Sideways only.
(d) All directions.
Ans: (d) All directions.
14. If the area of contact is increased while keeping the force constant, what happens to the pressure?
(a) Increases.
(b) Decreases.
(c) Remains the same.
(d) Becomes zero.
Ans: (b) Decreases.
15. Which of the following statements about pressure is true?
(a) Pressure increases with increasing area.
(b) Pressure decreases with increasing force.
(c) Pressure is independent of area.
(d) Pressure increases with increasing force.
Ans: (d) Pressure increases with increasing force.
16. What is the pressure at a depth of 10 meters in water? (Assuming density of water = 1000 kg/m³, g = 9.8 m/s²)
(a) 9800 Pa.
(b) 1000 Pa.
(c) 980 Pa.
(d) 10000 Pa.
Ans: (a) 9800 Pa.
17. The force required to break a glass is an example of:
(a) Tension force.
(b) Normal force.
(c) Shear force.
(d) Frictional force.
Ans: (c) Shear force.
18. A balloon is filled with air. What type of force is exerted by the air inside the balloon on its walls?
(a) Gravitational force.
(b) Normal force.
(c) Frictional force.
(d) Tension force.
Ans: (b) Normal force.
19. Which law states that the pressure of a gas is inversely proportional to its volume at constant temperature?
(a) Boyle’s Law.
(b) Charles’s Law.
(c) Avogadro’s Law.
(d) Dalton’s Law.
Ans: (a) Boyle’s Law.
20. In hydraulic systems, which principle is utilized to lift heavy objects?
(a) Archimedes’ principle.
(b) Pascal’s principle.
(c) Bernoulli’s principle.
(d) Newton’s third law.
Ans: (b) Pascal’s principle.
