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 Forces and Magnets 40 Flashcards |
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What is the definition of a force? |
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 A force is a push or pull that can change how things move or their shape. |
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Fill in the blank: A ______ is a device used to measure the strength of a force acting on an object. |
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 Force meter |
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True or False: Weight is a force that pulls objects away from the Earth. |
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 False. Weight is a force that pulls objects towards the Earth. |
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Riddle: I am the force that makes things fall down, always pulling towards the ground. What am I? |
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 Gravity |
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Which of the following is an example of a situation where friction is beneficial? A) Sliding down a slide B) Stopping a car C) Skating on ice D) Riding a bicycle |
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 B) Stopping a car |
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Fill in the blank: Friction can create ______ when two surfaces rub against each other. |
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 Heat |
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True or False: A north pole of a magnet repels a south pole. |
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 False. A north pole of a magnet attracts a south pole. |
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What happens when two like poles of magnets are brought close together? |
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 They repel each other. |
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Riddle: I can hold things together without using glue, but I am not sticky. What am I? |
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 A magnet |
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Which of the following materials is magnetic? A) Plastic B) Wood C) Steel D) Glass |
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 C) Steel |
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Fill in the blank: The force that opposes motion between two surfaces is called ______. |
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 Friction |
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True or False: Magnetic materials can be attracted to magnets. |
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 True. |
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What is the main purpose of a force meter in sports science? |
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 To measure the force exerted by athletes during training or competitions. |
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Riddle: I am found in recycling, helping to sort metals with ease. What force am I? |
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 Magnetism |
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Fill in the blank: The force of gravity is strongest at the ______ of the Earth. |
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 Center |
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Which type of friction makes it easier to slide? A) High friction B) Low friction |
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 B) Low friction |
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True or False: Non-magnetic materials can be attracted to magnets. |
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 False. Non-magnetic materials are not attracted to magnets. |
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What type of energy do magnets help generate in wind turbines? |
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 Electrical energy |
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Fill in the blank: Opposite poles of magnets ______ each other. |
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 Attract |
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What is the main function of a force meter? |
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 To measure the strength of a force acting on an object. |
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