what is your name?, salma, silmi, alma, silma, you know, forces cannot be seen but we can observe their effects, yes, i know, no, force can be see directly, yes, force cannot change anything, no, force has no effect, when you spin a coin using your fingers, the force acting on the coin is called, gravity, applied force, friction, air resistance, what cause the spinning coin to come to a complate stop?, gravity only, normal force, friction, magnetism, gravity is a force that pulls objects towards , the centre of the earth , the objects, the sky, the surface of water, why doesn't a woman sitting a chair fall through it?, there is no gravity acting on her, there is an upward force acting against gravity, the chair is heavy, i don't know, the upward force that supports objects placed on a surface is called, friction, gravity, air resistance, normal force, a ship doesn't sink to the bottom of the sea because of..., air resistance, friction, upthrust, force, a parachute helps a skydriver land safely because it increases....., gravity, water resistance, speed, air resistance, the force acting between the body of fish and the water is known as..., water resistance, force, speed, air resistance.

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