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10Friction helps us to walk without slipping.
Tyres are designed to reduce friction with the road.
Vehicles cannot be stopped by brakes without friction.
Friction helps to fasten nails and nut-bolts.
Friction always increases the efficiency of machines.
Friction converts kinetic energy into heat energy.
Friction causes wearing and tearing of machine parts.
Friction is only harmful to us.
Friction is called a necessary evil.
Absence of friction would make walking and driving easy.
Percentage: 0%
Projections on shoe soles increase:
Designs on vehicle tyres are made to:
Brakes stop vehicles due to:
Which work is possible due to friction?
Friction converts kinetic energy into:
Which is a disadvantage of friction?
Friction decreases the ______ of machines.
More friction in machines causes:
Friction is called necessary evil because it is:
Vehicles would slip on roads if friction is:
Friction helps us to ______ without slipping.
Designs on tyres increase ______ with the road.
Brakes work due to ______.
Friction helps to fix ______ into wood.
Friction converts kinetic energy into ______ energy.
Friction causes wearing and ______ of machine parts.
More friction reduces the ______ of machines.
Shoes slip when projections on sole are ______ away.
Friction needs more ______ to do work.
Friction is called a ______ evil.