EASY
8th CBSE
IMPORTANT
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What is meant by a non-contact force? Explain with the help of an example.

Important Questions on Force and Pressure

EASY
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 11 - Force and Pressure>Long Answer Type Questions>Q 62
Define frictional force (or friction). 
EASY
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 11 - Force and Pressure>Long Answer Type Questions>Q 62
Explain why the frictional force is said to be a contact force.
MEDIUM
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 11 - Force and Pressure>Long Answer Type Questions>Q 62
Explain why, magnetic force is said to be a non-contact force.
MEDIUM
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 11 - Force and Pressure>Long Answer Type Questions>Q 63
Define pressure. What is the relation between pressure, force, and area? State the units in which pressure is measured.
EASY
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 11 - Force and Pressure>Long Answer Type Questions>Q 63
Explain why school bags are provided with wide straps to carry them.
MEDIUM
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 11 - Force and Pressure>Long Answer Type Questions>Q 64
What is meant by atmospheric pressure? What is the cause of atmospheric pressure.
MEDIUM
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 11 - Force and Pressure>Long Answer Type Questions>Q 64
Why are our bodies not crushed by the large pressure exerted by the atmosphere?
MEDIUM
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 11 - Force and Pressure>Long Answer Type Questions>Q 64
Explain why atmospheric pressure decreases as we go higher up above the earth’s surface.