MEDIUM
8th CBSE
IMPORTANT
Earn 100

Two forces act on an object. Explain what the net force acting on the object will be in different situations.

Important Questions on Force and Pressure

MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 11 - Force and Pressure>EXERCISES>Q E
Explain the effects that a force acting on an object can have on the object.
HARD
8th CBSE
IMPORTANT
Living Science 8>Chapter 11 - Force and Pressure>EXERCISES>Q E
Describe an experiment to show that air exerts pressure in all directions.
MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 11 - Force and Pressure>EXERCISES>Q 1
If a body is moving with uniform speed in a particular direction on a perfectly smooth surface, then no force is acting on it.
MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 11 - Force and Pressure>EXERCISES>Q 2
If you use a stick to push an object, the muscular force acing on the object is a non-contact force since your body is not in contact with the object. 
EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 11 - Force and Pressure>EXERCISES>Q 3
Gravitational force exists between you and building. Why are you not pulled towards the building?
MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 11 - Force and Pressure>EXERCISES>Q 4
Why do you think it is necessary to define a separate quantity called pressure? Why is defining only force not enough?
EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 11 - Force and Pressure>EXERCISES>Q 5
Suppose you are going in a jet plane, and one of the windows breaks due to an accident. What problems do you think you will face?
EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 11 - Force and Pressure>EXERCISES>Q 6
If you press a rubber sucker on a rough surface, it does not stick to the surface. Why?