SCIENCE
PHYSICAL SCIENCES
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a space heater
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a battery
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a fan
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a ball sitting on top of a hill
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Detailed explanation-1: -Answer and Explanation: Examples of thermal energy include heaters that make a room warmer, the sun drying wet clothes on a clothesline, ironing a shirt, baking a cake, and warming water to make tea. Any object or substance that is warm is emitting thermal energy.
Detailed explanation-2: -Most space heaters use convection heating (circulating air in a room) to warm up a room. However, some rely on radiant heating. This type of heat is created by emitting infrared radiation that directly heats up objects and people that are within a certain range of the heater.
Detailed explanation-3: -Electrical energy is used by a heater to give out heat energy. This conversion uses the heating effects of electricity when it passes through substances.
Detailed explanation-4: -An electric space heater is a heating device designed to focus heat in a single room or small zone. They work by expelling hot air through a fan, which naturally rises and forces colder air to the floor. This process helps to circulate the heat and warm the space effectively.
Detailed explanation-5: -The warmth from the sun. A cup of hot chocolate* Baking in an oven. The heat from a heater.