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- Multiple ChoicePlease save your changes before editing any questions.
Passengers are rushed backward when a car stops suddenly.
True
False
- Multiple ChoicePlease save your changes before editing any questions.
Friction is a property of an object has to resist the change of its state.
True
False
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Slowing down of a moving bicycle on a road by brakes is due to its inertia
True
False
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Friction prevents feet from slipping on roads during walking.
True
False
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Friction causes a great loss of electric energy because this energy is changed into heat energy.
True
False
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Car tyres are covered with a very smooth substance to increase the friction with roads.
True
False
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Friction always opposes motion.
True
False
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Lubricants and oils have no effect on friction.
True
False
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Friction may occur between the surface of a solid object and air.
True
False
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Car brakes are from applications on friction forces.
True
False
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There are forces inside amoeba to keep it survival.
True
False
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Heart muscle contraction and relaxation is one of the forces inside living systems.
True
False
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Safety belt in cars work on increasing the forces of inertia.
True
False
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Contraction and relaxation of body muscles help in moving.
True
False
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Liquids transport through pores and the walls of cells from the higher concentration to the lower one.
True
False