SCIENCE
PHYSICAL SCIENCES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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burning a wax candle
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a small toaster oven toasts a bagel
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rubbing two sticks together
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sunlight heating a metal door
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Detailed explanation-1: -The toaster consist of the heating element. When electrical energy passes through this heating element, it converts this electrical energy to heat energy which helps to prepare toast (bread that turns brown on exposure to heat). Hence electrical energy is transformed to heat energy in a electric toaster.
Detailed explanation-2: -A flat iron, an electric toaster and a stove all convert electrical energy into thermal energy.
Detailed explanation-3: -Electrical Energy is converted to Kinetic Energy. Electricity is converted to Light (light bulb) and Sound and Light (TV). Chemical food energy is converted to Energy to Work (person running).
Detailed explanation-4: -Electric energy can be converted into heat energy. Iron, water heater, and induction cooker are some of the devices which convert electrical energy into heat energy.
Detailed explanation-5: -When electron flow is resisted, some of the energy in the electrons does not travel through all the way. Because energy is conserved, the energy that was moving the electrons forward is converted to heat energy. It can also be converted to light energy, as in the filament in a light bulb.