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Contact and Non-Contact Forces (ws 14, , Define contact force. State examples where contact force is applied., ‘Ans; Example: While riding a bicycle, when brakes are applied, the bicycle stops due to, the force of friction. This is a contact force as it is applied when brakes came in contact, , with the wheels. Also as we walk on the road frictional force is applied when our shoes, ‘come in contact with the road. (Accept all correct answers.), , , , , , , , , , , , 2. Define non-contact force. State examples where non-contact force is applied., ‘Ans: A force that can be exerted without any contact between two objects is called, ‘non-contact. Example: A ball thrown upwards always comes down due to the force, of gravity acting on it. This is a non-contact force as itis applied without any contact, between the ground and the ball., , , , , , , , , , , , 3. Define muscular force. State examples where muscular force is applied., ‘Ans: The force exerted due to the action of our muscles is called muscular force., Example: A boy pushing a wooden box with his hand., , AA girl throwing the ball (Accept all correct answers.), , , , , , , , , , , , 4. Define magnetic force. State examples where magnetic force is applied., ‘Ans; The force exerted by a magnet on iron objects is called magnetic force., Example: A magnet pulling iron clips towards it without being in contact with them., (Accept all correct answers.)