EASY
8th CBSE
IMPORTANT
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Sprinkling of talcum powder, on the carrom-board, helps to friction.  

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Important Questions on Friction

EASY
8th CBSE
IMPORTANT
The Living World A book of Science and Technology>Chapter 5 - Friction>Something To Know>Q 5
Frictional force, on an object moving in a fluid, depends on its _____.
EASY
8th CBSE
IMPORTANT
The Living World A book of Science and Technology>Chapter 5 - Friction>Something To Know>Q 6
The shape of an aeroplane is _____ to reduce, the effects of friction, due to air. 
EASY
8th CBSE
IMPORTANT
The Living World A book of Science and Technology>Chapter 5 - Friction>Something To Know>Q 1
When a body slides over smooth and wet surfaces, the amount of interlocking of irregularities, of the two surfaces in contact, increases. 
EASY
8th CBSE
IMPORTANT
The Living World A book of Science and Technology>Chapter 5 - Friction>Something To Know>Q 2
If a car moves eastwards, the force of friction acts southwards. 
EASY
8th CBSE
IMPORTANT
The Living World A book of Science and Technology>Chapter 5 - Friction>Something To Know>Q 3
Friction depends on how hard the two surfaces press against each other.
EASY
8th CBSE
IMPORTANT
The Living World A book of Science and Technology>Chapter 5 - Friction>Something To Know>Q 4
The sole of the shoes and the tyres of the vehicles are 'treaded' to decrease the effects of friction.
EASY
8th CBSE
IMPORTANT
The Living World A book of Science and Technology>Chapter 5 - Friction>Something To Know>Q 5
Lubricants can be liquids, semi-liquids or solids.
EASY
8th CBSE
IMPORTANT
The Living World A book of Science and Technology>Chapter 5 - Friction>Something To Know>Q 6
Friction can be increased by using ball bearings between the moving parts of machines.