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Force and Pressure — Class 8 CBSE Science MCQs with Solutions
Free Class 8 CBSE Science Force and Pressure MCQs with step-by-step solutions. Practise online on Prepizo — no login needed.
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Sample questions with solutions
Q1 — easy
The force that acts on all objects due to the Earth is:
A. friction
B. gravity ✓ Correct
C. magnetic force
D. muscular force
Solution: Gravity pulls objects towards the Earth.
Q2 — easy
Which of these is a contact force?
A. gravitational force
B. magnetic force
C. muscular force ✓ Correct
D. electrostatic force
Solution: Muscular force needs direct contact.
Q3 — easy
The SI unit of force is the:
A. joule
B. newton ✓ Correct
C. pascal
D. watt
Solution: Force is measured in newtons.
Q4 — hard
Why is it easier to walk on soft sand wearing flat shoes than pointed heels?
A. Flat shoes are lighter
B. Flat shoes spread weight over a larger area, lowering pressure ✓ Correct
C. Heels reduce weight
D. Sand is harder under heels
Solution: Larger contact area means lower pressure.
Q5 — hard
A force can change an object's:
A. speed only
B. direction only
C. shape only
D. speed, direction and shape ✓ Correct
Solution: Force can change all three.
Q6 — hard
Which forces act on a ball falling freely through air?
A. only gravity
B. gravity and air resistance ✓ Correct
C. only friction
D. no force
Solution: Gravity pulls down while air resistance opposes motion.
Q7 — medium
The pressure exerted by air around us is called:
A. water pressure
B. atmospheric pressure ✓ Correct
C. muscular pressure
D. magnetic pressure
Solution: Air has weight and exerts pressure.
Q8 — medium
Liquids exert pressure on:
A. only the bottom
B. only the sides
C. the bottom and the walls of the container ✓ Correct
D. nothing
Solution: Liquid pressure acts in all directions.
Q9 — medium
Two forces acting in opposite directions on an object produce a net force equal to:
A. their sum
B. their difference ✓ Correct
C. zero always
D. double the larger
Solution: Opposite forces subtract.