MEDIUM
8th CBSE
IMPORTANT
Earn 100

Explain why, porters place a thick round piece of cloth on their heads when they have to carry heavy loads.

Important Questions on Force and Pressure

MEDIUM
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 11 - Force and Pressure>Short Answer Type Questions>Q 60
Give one practical application of magnetic force.
EASY
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 11 - Force and Pressure>Long Answer Type Questions>Q 61
What is meant by a contact force? Explain with the help of an example.
EASY
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 11 - Force and Pressure>Long Answer Type Questions>Q 61

What is meant by a non-contact force? Explain with the help of an example.

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.