EASY
8th CBSE
IMPORTANT
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Which of the following are contact forces ? 
A. Friction
B. Gravitational force
C. Magnetic force
D. Muscular force 

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Important Questions on Force and Pressure

EASY
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 11 - Force and Pressure>Multiple Choice Questions (MCQs)>Q 71
If we release a magnet held in our hand, it falls to the ground. The force responsible for this is:
EASY
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 11 - Force and Pressure>Multiple Choice Questions (MCQs)>Q 72
Which of the following force is utilised in reducing air pollution by removing dust, soot and fly-ash particles from the smoke coming out of chimneys of factories?
EASY
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 11 - Force and Pressure>Multiple Choice Questions (MCQs)>Q 73
The same force F acts on four different objects having the areas given below, one by one. In which case the pressure exerted will be the maximum?
EASY
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 11 - Force and Pressure>Multiple Choice Questions (MCQs)>Q 74
Which of the following represents correct values for the normal atmospheric pressure?
A. 101.3 kPa
B. 76 mm of mercury
C. 101.3 Pa
D. 76 cm of mercury
EASY
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 11 - Force and Pressure>Multiple Choice Questions (MCQs)>Q 75
Which of following does not work on the existence of atmospheric pressure?
EASY
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 11 - Force and Pressure>Multiple Choice Questions (MCQs)>Q 76
The magnitude of force is expressed in the unit of force called:
EASY
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 11 - Force and Pressure>Multiple Choice Questions (MCQs)>Q 77
Which of the following change appreciably when a batsman hits a moving cricket ball?
A. Shape B. Direction C. Size D. Speed.
EASY
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 11 - Force and Pressure>Multiple Choice Questions (MCQs)>Q 78
 Which of the following is not an effect of force?