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By rohit.pandey1
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Updated on 6 Sep 2025, 12:36 IST
Force and Pressure MCQs Class 8 are one of the most effective ways to practice important concepts from NCERT Science Chapter 11. This page includes a wide range of multiple choice questions with answers, worksheets, and PDFs covering topics like types of forces, pressure formula, atmospheric pressure, Pascal’s law, and applications of pressure in daily life. Designed as per the latest CBSE Class 8 Science syllabus, these MCQs help students strengthen conceptual understanding, improve exam readiness, and revise quickly. Whether you want a downloadable worksheet PDF or an interactive quiz for practice, this collection of Class 8 Force and Pressure questions will make your revision smarter and more effective.
Q1. Which of the following is a non-contact force?
(a) Frictional force
(b) Gravitational force
(c) Muscular force
(d) Normal force
Answer: (b) Gravitational force
Q2. The SI unit of pressure is:
(a) Newton
(b) Pascal
(c) Joule
(d) Dyne
Answer: (b) Pascal
Q3. A push or pull on an object is called:
(a) Work
(b) Energy
(c) Force
(d) Power
Answer: (c) Force
Q4. Which of the following can change the shape of an object?
(a) Heat only
(b) Pressure only
(c) Force
(d) Energy
Answer: (c) Force
Q5. Pressure = _______.
(a) Force × Area
(b) Force ÷ Area
(c) Area ÷ Force
(d) Force × Distance
Answer: (b) Force ÷ Area
Q6. Which force makes a nail move into a wooden plank when hit with a hammer?
(a) Gravitational force
(b) Frictional force
(c) Muscular force
(d) Contact force
Answer: (d) Contact force
Q7. Liquids and gases are together called:
(a) Fluids
(b) Solvents
(c) Mixtures
(d) Elements
Answer: (a) Fluids
Q8. Which law states that pressure applied at one point of a liquid is transmitted equally in all directions?
(a) Boyle’s Law
(b) Pascal’s Law
(c) Newton’s Law
(d) Archimedes’ Principle
Answer: (b) Pascal’s Law
Q9. Why does a sharp knife cut better than a blunt knife?
(a) It is made of stronger material
(b) It has more force applied
(c) It has a smaller area, so pressure is more
(d) It is lighter in weight
Answer: (c) It has a smaller area, so pressure is more
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Q10. Which instrument is used to measure atmospheric pressure?
(a) Barometer
(b) Manometer
(c) Hydrometer
(d) Thermometer
Answer: (a) Barometer
Q11. When a force is applied on a moving object, it can:
(a) Only stop the object
(b) Only change its direction
(c) Only change its shape
(d) Change speed, direction, or shape
Answer: (d) Change speed, direction, or shape
Q12. Which of the following is an example of muscular force?
(a) Magnet attracting iron nails
(b) A child kicking a football
(c) Apple falling from a tree
(d) Comb attracting paper bits
Answer: (b) A child kicking a football
Q13. Why does a camel walk easily on sand?
(a) It has strong legs
(b) Its wide feet reduce pressure on sand
(c) It moves slowly
(d) It is light in weight
Answer: (b) Its wide feet reduce pressure on sand
Q14. The pressure exerted by air is known as:
(a) Fluid pressure
(b) Atmospheric pressure
(c) Liquid pressure
(d) Hydrostatic pressure
Answer: (b) Atmospheric pressure
Q15. The force exerted by a charged body on another charged body is called:
(a) Electrostatic force
(b) Gravitational force
(c) Magnetic force
(d) Tension force
Answer: (a) Electrostatic force
Q1. Force is defined as:
(a) Mass × Acceleration
(b) Push or Pull
(c) Weight ÷ Area
(d) Work ÷ Distance
Answer: (b) Push or Pull
Q2. Which of these is a contact force?
(a) Gravitational force
(b) Muscular force
(c) Magnetic force
(d) Electrostatic force
Answer: (b) Muscular force
Q3. The SI unit of force is:
(a) Newton
(b) Joule
(c) Watt
(d) Pascal
Answer: (a) Newton
Q4. Which one is NOT an effect of force?
(a) Change in speed
(b) Change in shape
(c) Change in temperature
(d) Change in direction
Answer: (c) Change in temperature
Q5. The pressure exerted by liquids is always:
(a) Upward
(b) Downward
(c) In all directions
(d) Only sideways
Answer: (c) In all directions
Q6. Which force is responsible for holding planets in orbit?
(a) Electrostatic
(b) Gravitational
(c) Magnetic
(d) Friction
Answer: (b) Gravitational
Q7. Pressure depends on:
(a) Only mass
(b) Only volume
(c) Force and area
(d) Shape of object
Answer: (c) Force and area
Q8. SI unit of pressure is:
(a) Dyne/cm²
(b) Pascal
(c) Bar
(d) Newton
Answer: (b) Pascal
Q9. Which of the following is a non-contact force?
(a) Friction
(b) Magnetic force
(c) Muscular force
(d) Normal force
Answer: (b) Magnetic force
Q10. Force applied per unit area is called:
(a) Energy
(b) Work
(c) Pressure
(d) Power
Answer: (c) Pressure
Q11. The normal force always acts:
(a) At an angle
(b) Downward
(c) Perpendicular to surface
(d) Along motion
Answer: (c) Perpendicular to surface
Q12. A force can:
(a) Change speed
(b) Change shape
(c) Change direction
(d) All of these
Answer: (d) All of these
Q13. Unit of pressure other than Pascal is:
(a) Joule
(b) Newton
(c) Bar
(d) Ampere
Answer: (c) Bar
Q14. Liquids and gases exert:
(a) Weight
(b) Energy
(c) Pressure
(d) Power
Answer: (c) Pressure
Q15. Which device measures pressure in liquids?
(a) Manometer
(b) Thermometer
(c) Barometer
(d) Voltmeter
Answer: (a) Manometer
Q16. Why do camels not sink in sand?
(a) They are light
(b) They walk slowly
(c) They have wide feet to reduce pressure
(d) They use less energy
Answer: (c) They have wide feet to reduce pressure
Q17. Why does a nail pierce wood easily?
(a) Large force
(b) Small surface area increases pressure
(c) Nail is heavy
(d) Nail is sharp
Answer: (b) Small surface area increases pressure
Q18. Which instrument measures atmospheric pressure?
(a) Hydrometer
(b) Barometer
(c) Manometer
(d) Thermometer
Answer: (b) Barometer
Q19. Which of these is used in hydraulic lifts?
(a) Archimedes’ Principle
(b) Pascal’s Law
(c) Boyle’s Law
(d) Newton’s Law
Answer: (b) Pascal’s Law
Q20. Why do high-heeled shoes sink into soil more than flat shoes?
(a) More force
(b) Less area → more pressure
(c) Heavier material
(d) Different shape
Answer: (b) Less area → more pressure
Q21. Pressure inside liquids depends on:
(a) Depth and density
(b) Only depth
(c) Only density
(d) Shape of container
Answer: (a) Depth and density
Q22. Which force is responsible for paper sticking to a comb after combing dry hair?
(a) Frictional force
(b) Electrostatic force
(c) Magnetic force
(d) Normal force
Answer: (b) Electrostatic force
Q23. A sharp knife is preferred over a blunt one because:
(a) It is made of steel
(b) It reduces pressure
(c) It increases pressure by reducing area
(d) It is easy to handle
Answer: (c) It increases pressure by reducing area
Q24. Which gas law is applied in syringes and spray bottles?
(a) Pascal’s Law
(b) Boyle’s Law
(c) Archimedes’ Principle
(d) None
Answer: (a) Pascal’s Law
Q25. Air pressure decreases with:
(a) Height
(b) Depth
(c) Temperature
(d) Force
Answer: (a) Height
Q26. Why do elephants not sink in muddy ground?
(a) They are heavy
(b) Their feet have large surface area → less pressure
(c) They use more force
(d) None
Answer: (b) Large surface area → less pressure
Q27. Why do passengers’ ears pop during flights?
(a) Sound pressure
(b) Difference in atmospheric pressure
(c) Body weight
(d) Vibration
Answer: (b) Difference in atmospheric pressure
Q28. Which principle explains why toothpaste comes out when we press the tube?
(a) Boyle’s Law
(b) Archimedes’ Principle
(c) Pascal’s Law
(d) Newton’s Law
Answer: (c) Pascal’s Law
Q29. Which force helps us walk?
(a) Normal force
(b) Frictional force
(c) Gravitational force
(d) Electrostatic force
Answer: (b) Frictional force
Q30. Which factor increases pressure on a surface?
(a) Increase force, decrease area
(b) Decrease force, increase area
(c) Increase force, increase area
(d) None
Answer: (a) Increase force, decrease area
Q31. Tyres of heavy vehicles are broad because:
(a) Reduce force
(b) Increase speed
(c) Increase area to reduce pressure
(d) To look stylish
Answer: (c) Increase area to reduce pressure
Q32. Why does water come out of a hole in a bottle more forcefully at the bottom?
(a) More pressure at greater depth
(b) Less pressure at bottom
(c) Equal pressure everywhere
(d) None
Answer: (a) More pressure at greater depth
Q33. Which device works on atmospheric pressure?
(a) Lift pump
(b) Pressure cooker
(c) Refrigerator
(d) Heater
Answer: (a) Lift pump
Q34. When air is removed from a plastic bottle, it collapses because:
(a) Air pressure outside is greater
(b) No gravity
(c) Pressure inside is greater
(d) Bottle is weak
Answer: (a) Air pressure outside is greater
Q35. Which of these is NOT an application of pressure?
(a) Syringes
(b) Hydraulic brakes
(c) Paper cutting
(d) Reflection of light
Answer: (d) Reflection of light
Q36. A force of 100 N is applied on an area of 2 m². Pressure = ?
(a) 200 Pa
(b) 50 Pa
(c) 100 Pa
(d) 20 Pa
Answer: (b) 50 Pa
Q37. A boy of weight 400 N stands on a shoe with area 0.02 m². What pressure does he exert?
(a) 2000 Pa
(b) 20,000 Pa
(c) 40,000 Pa
(d) 2,000,000 Pa
Answer: (c) 20,000 Pa
Q38. A 500 N box rests on an area of 0.25 m². Find the pressure.
(a) 2000 Pa
(b) 1000 Pa
(c) 2500 Pa
(d) 500 Pa
Answer: (a) 2000 Pa
Q39. A force of 10 N is applied on a surface area of 5 cm². Pressure = ? (1 cm² = 0.0001 m²)
(a) 20,000 Pa
(b) 200 Pa
(c) 100 Pa
(d) 2 Pa
Answer: (a) 20,000 Pa
Q40. If area is doubled and force remains constant, pressure will:
(a) Double
(b) Reduce to half
(c) Stay same
(d) Become zero
Answer: (b) Reduce to half
Q41. A hydraulic press has piston areas of 10 cm² and 100 cm². If force of 20 N is applied on smaller piston, output force is:
(a) 20 N
(b) 200 N
(c) 100 N
(d) 2 N
Answer: (b) 200 N
Q42. Which condition shows highest pressure?
(a) 100 N on 5 m²
(b) 50 N on 1 m²
(c) 200 N on 10 m²
(d) 10 N on 0.5 m²
Answer: (b) 50 N on 1 m²
Q43. A box of weight 50 N rests on ground area 0.5 m². Pressure = ?
(a) 25 Pa
(b) 100 Pa
(c) 50 Pa
(d) 500 Pa
Answer: (b) 100 Pa
Q44. When depth of liquid doubles, pressure at bottom:
(a) Halves
(b) Doubles
(c) Becomes zero
(d) Remains same
Answer: (b) Doubles
Q45. Which principle is used in hydraulic brakes?
(a) Pascal’s Law
(b) Boyle’s Law
(c) Archimedes’ Principle
(d) Newton’s 3rd Law
Answer: (a) Pascal’s Law
Q46. A force of 150 N applied on piston area 0.01 m² gives pressure of:
(a) 150 Pa
(b) 1500 Pa
(c) 15,000 Pa
(d) 150,000 Pa
Answer: (d) 15,000 Pa
Q47. The pressure at 20 m depth of water (density 1000 kg/m³, g = 10 m/s²) = ?
(a) 2000 Pa
(b) 20,000 Pa
(c) 200,000 Pa
(d) 2,000,000 Pa
Answer: (c) 200,000 Pa
Q48. Why do nails have pointed tips?
(a) To look sharp
(b) Reduce pressure
(c) Increase pressure
(d) Reduce force
Answer: (c) Increase pressure
Q49. Which situation shows the lowest pressure?
(a) Person standing on toes
(b) Person lying flat on ground
(c) Person walking
(d) Person carrying bag
Answer: (b) Person lying flat on ground
Q50. A force of 50 N acts on a piston of area 0.005 m². Pressure = ?
(a) 100 Pa
(b) 1000 Pa
(c) 10,000 Pa
(d) 500 Pa
Answer: (c) 10,000 Pa
In Class 8 Science Chapter 11 – Force and Pressure, a force is defined as a push or pull acting on an object. Force is measured by its magnitude (strength) and direction, and it can bring about several effects:
Forces are broadly classified into two categories:
Each type of force plays an important role in daily life and in exam-oriented Class 8 Science MCQs on force.
Pressure is defined as the force acting per unit area. Its SI unit is the Pascal (Pa). The relationship is simple:
Key facts for exams:
Force and pressure are applied in many daily life situations:
Understanding these applications helps students solve NCERT Class 8 Force and Pressure MCQs, worksheets, and numericals effectively.
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Applying a force can change the state of motion of an object, alter its speed, change its direction of movement, or even modify its shape.
Sharp heels have a small surface area. When force (body weight) acts on a smaller area, pressure increases, causing the heels to sink into soft ground.
Fluids (liquids and gases) exert pressure in all directions at a given depth. This is why liquid flows out equally from holes made at the same level in a container.
The SI unit of pressure is the Pascal (Pa), defined as one Newton force acting on one square metre of area.
There are two main types of forces:
A camel has broad feet, which increases the area in contact with sand and reduces pressure, preventing sinking.