Identify Energy Input Output - 4th Grade Science
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Identify the energy input and main energy output of a car engine burning gasoline to move the car.
Identify the energy input and main energy output of a car engine burning gasoline to move the car.
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Input: chemical energy (gasoline); Output: mechanical (motion) energy. Combustion releases energy that pistons convert to motion.
Input: chemical energy (gasoline); Output: mechanical (motion) energy. Combustion releases energy that pistons convert to motion.
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What do the terms energy input and energy output mean for a device that converts energy?
What do the terms energy input and energy output mean for a device that converts energy?
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Input: energy that enters; Output: energy that leaves after conversion. Devices transform energy from one form to another during operation.
Input: energy that enters; Output: energy that leaves after conversion. Devices transform energy from one form to another during operation.
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Which statement best describes energy conversion in a device: energy is created, destroyed, or changed in form?
Which statement best describes energy conversion in a device: energy is created, destroyed, or changed in form?
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Energy is changed in form (converted), not created or destroyed. Energy follows conservation law - it transforms but total amount stays constant.
Energy is changed in form (converted), not created or destroyed. Energy follows conservation law - it transforms but total amount stays constant.
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Identify the energy input and main energy output of a flashlight that uses batteries.
Identify the energy input and main energy output of a flashlight that uses batteries.
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Input: chemical energy; Output: light energy. Batteries store chemical energy that converts to light in bulbs.
Input: chemical energy; Output: light energy. Batteries store chemical energy that converts to light in bulbs.
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Identify the energy input and main energy output of a toaster that is plugged into a wall outlet.
Identify the energy input and main energy output of a toaster that is plugged into a wall outlet.
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Input: electrical energy; Output: thermal (heat) energy. Electric current flows through heating elements to warm bread.
Input: electrical energy; Output: thermal (heat) energy. Electric current flows through heating elements to warm bread.
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Identify the energy input and main energy output of a ceiling fan running on electricity.
Identify the energy input and main energy output of a ceiling fan running on electricity.
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Input: electrical energy; Output: mechanical (motion) energy. Electric motor spins blades to create air movement.
Input: electrical energy; Output: mechanical (motion) energy. Electric motor spins blades to create air movement.
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Identify the energy input and main energy output of a hair dryer that blows warm air.
Identify the energy input and main energy output of a hair dryer that blows warm air.
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Input: electrical energy; Output: thermal (heat) energy. Heating element warms air while motor blows it out.
Input: electrical energy; Output: thermal (heat) energy. Heating element warms air while motor blows it out.
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Identify the energy input and main energy output of a speaker playing music from a phone.
Identify the energy input and main energy output of a speaker playing music from a phone.
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Input: electrical energy; Output: sound energy. Electric signals vibrate speaker cone to produce sound waves.
Input: electrical energy; Output: sound energy. Electric signals vibrate speaker cone to produce sound waves.
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Identify the energy input and main energy output of a television that is turned on.
Identify the energy input and main energy output of a television that is turned on.
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Input: electrical energy; Output: light and sound energy. Screen emits light while speakers produce sound from electric signals.
Input: electrical energy; Output: light and sound energy. Screen emits light while speakers produce sound from electric signals.
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Identify the energy input and main energy output of a microwave oven heating food.
Identify the energy input and main energy output of a microwave oven heating food.
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Input: electrical energy; Output: thermal (heat) energy in food. Microwaves agitate water molecules in food, creating heat.
Input: electrical energy; Output: thermal (heat) energy in food. Microwaves agitate water molecules in food, creating heat.
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Identify the energy input and main energy output of a blender mixing food when switched on.
Identify the energy input and main energy output of a blender mixing food when switched on.
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Input: electrical energy; Output: mechanical (motion) energy. Motor spins blades to chop and mix ingredients.
Input: electrical energy; Output: mechanical (motion) energy. Motor spins blades to chop and mix ingredients.
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Identify the energy input and main energy output of a solar panel used to power a device.
Identify the energy input and main energy output of a solar panel used to power a device.
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Input: light energy; Output: electrical energy. Photovoltaic cells transform sunlight into electric current.
Input: light energy; Output: electrical energy. Photovoltaic cells transform sunlight into electric current.
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Identify the energy input and main energy output of a wind turbine generating electricity.
Identify the energy input and main energy output of a wind turbine generating electricity.
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Input: mechanical (wind motion) energy; Output: electrical energy. Wind spins turbine blades connected to generators.
Input: mechanical (wind motion) energy; Output: electrical energy. Wind spins turbine blades connected to generators.
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Identify the energy input and main energy output of a hydroelectric dam generating electricity.
Identify the energy input and main energy output of a hydroelectric dam generating electricity.
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Input: moving water (mechanical) energy; Output: electrical energy. Falling water turns turbines that generate electricity.
Input: moving water (mechanical) energy; Output: electrical energy. Falling water turns turbines that generate electricity.
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Identify the energy input and main energy output of a bicycle rider pedaling to move forward.
Identify the energy input and main energy output of a bicycle rider pedaling to move forward.
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Input: chemical energy (food); Output: mechanical (motion) energy. Body converts food energy into muscle movement.
Input: chemical energy (food); Output: mechanical (motion) energy. Body converts food energy into muscle movement.
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Identify the energy input and main energy output of a candle that is burning.
Identify the energy input and main energy output of a candle that is burning.
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Input: chemical energy (wax); Output: light and thermal energy. Burning wax releases energy as flame and heat.
Input: chemical energy (wax); Output: light and thermal energy. Burning wax releases energy as flame and heat.
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Identify the energy input and main energy output of a stove burner heating a pot (electric stove).
Identify the energy input and main energy output of a stove burner heating a pot (electric stove).
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Input: electrical energy; Output: thermal (heat) energy. Resistance in heating coils converts electricity to heat.
Input: electrical energy; Output: thermal (heat) energy. Resistance in heating coils converts electricity to heat.
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Which energy output is almost always present when a device is operating, even if it is not the main output?
Which energy output is almost always present when a device is operating, even if it is not the main output?
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Thermal (heat) energy. Most devices waste some energy as heat due to inefficiency.
Thermal (heat) energy. Most devices waste some energy as heat due to inefficiency.
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Identify the energy input and main energy output of a doorbell that rings when a button is pressed.
Identify the energy input and main energy output of a doorbell that rings when a button is pressed.
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Input: electrical energy; Output: sound energy. Electric current activates electromagnet to strike chime.
Input: electrical energy; Output: sound energy. Electric current activates electromagnet to strike chime.
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What is the energy input and output of a solar calculator in bright sunlight?
What is the energy input and output of a solar calculator in bright sunlight?
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Input: light (solar); Output: electrical. Solar cells convert sunlight directly into electricity to power the calculator.
Input: light (solar); Output: electrical. Solar cells convert sunlight directly into electricity to power the calculator.
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