Changes in Energy

Energy TRANSFER is best described as...

• The same type of energy that moves from one object to another.

• When the type of energy changes into another form.

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One example of Energy Transfer is...

• Hot coffee in a mug warming the mug and your hands.

• A computer converting electrical energy to sound and light energy.

• Your lamp converting electrical energy to light and thermal energy.

• Your Xbox converting electrical energy into light and sound energy.

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An energy transformation can best be described as...

• When the same type of energy moves from one object to another.

• When energy changes into a different type of energy.

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When you plug in your Xbox, electrical energy is transformed into...

• Sound and light energy

• Thermal and chemical energy

• light and chemical energy

• mechanical and thermal

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When you throw a basketball, __________ (when the ball is thrown) turns into Sound energy (when the ball hits the ground.)

• Sound energy

• mechanical energy

• Light energy

• chemical energy

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The Newton's Cradle on my desk is an example of what?

• Mechanical Energy Transfer

• Thermal Energy Transfer

• A chemical transformation to Light Energy

• A mechanical transformation to thermal energy.

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An experiment is done to measured the energy transfer. The total quantity of energy transferred was less than the amount measured at the beginning.Why?

• Energy was destroyed during certain steps in the experiment.

• The steps in the experiment required more energy than was available.

• The experiments created energy that was then used up at a faster rate.

• Some energy was transformed into unwanted heat or sound that was not detected.

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NGSS.HS-PS3-4

people use solar water heaters in their homes, where the sun warms water.Pipes transfer water to tapes. What energy inputs are needed for this system?

• energy to move cold water into the tank

• energy from the sun to warm the water in the tank.

• energy to move cold water into tank and solar energy to warm water

• energy to warm water and energy to move water from tank to pipe

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the roller coaster requires input energy from a motor to reach the top of a hill. what energy transformation is taking place?

• mechanical energy is transformed into electrical energy

• electrical energy is transformed into chemical energy

• electrical energy is transformed into mechanical energy

• no energy transformation occurs

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A hockey player uses her stick to hit a hockey puck. Which statement describes the energy transfer?

• Energy is transferred from the stick to the puck.

• Energy is transferred from the player to the puck.

• Energy is transferred from the puck to the player.

• Energy is transferred from the stick to the player.

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