Mechanical Energy

• A. Heat from the candle produces currents of warm air

• B. Heat from the candle produces electrical energy

• C. Light from the candle produces mechanical energu

• D. Light from the candle produces wind currents

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• A. Light Energy

• B. Electrical Energy

• C. Sound Energy

• D. Mechanical Energy

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• A. Light Energy

• B. Thermal Energy

• C. Electrical Energy

• D. Mechanical Energy

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Which of these is NOT an example of the bicycle using mechanical energy?

• the pedals, gears, and chain help turn the wheels

• the wheels turn when the bicycle moves

• the front wheel guides the bicycle as it moves

• the bell allows the driver to be heard

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• A. Coffee maker

• B. Watch

• C. Fire

• D. Hammer

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Thermal energy can change into other forms of energy, such as mechanical or electrical energy.

• true

• false

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What kinds of energy are needed in this investigation to change the state of matter of the candle?

• Light, mechanical, and thermal

• Electrical and thermal

• Mechanical, light, and electrical

• Thermal and mechanical

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A book sits on a the edge of a shelf. During an earthquake the book falls off the shelf.

What type of energy did the book have when it was falling?

• Heat energy

• Energy of motion

• Electrical energy

• Light energy

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Brady uses a wind-up robot to show how energy can cause change. Which of the following will NOT be changed by winding up the robot and letting it go?

• The robot's direction

• The robot’s mass

• The robot’s position

• The robot’s speed

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Molly is investigating motion in science class. She uses a ramp to test the speed of marbles. Which of the following is TRUE about her investigation?

• Energy is changing the marble's color

• Energy is changing the marble's mass

• Energy is changing the marble's position

• Energy is changing the marble's size

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