SWYK LGA- Energy Transformations

Energy of moving electrons

• electrical energy
• electromagnetic energy
• sound energy
• mechanical energy

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Which object requires only mechanical energy to perform its main function?

• A
• B
• C
• D

When water falls through a dam and turns a turbine connected to a generator, electricity is produced. This electricity is often used to light our homes and offices. Which of the following shows the energy transformations that occurs?

• electrical → light → mechanical
• chemical → mechanical → electrical
• mechanical → chemical → light
• mechanical → electrical → light

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The Electrical Energy of the stove is transferred to _____ Energy.

• Solar
• Thermal
• Potential
• Electrical

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Some students observing a classroom device being used, noticed the below energy transformations. 
Electrical → Mechanical → Sound
Which device were the students most likely observing?

• A triple beam balance measuring an object’s mass.
• A pencil sharpener plugged into a wall outlet.
• A projector displaying a diagram on the screen.
• A working flashlight used to light up a dark corner.

Which type of energy transformation occurs when a flashlight shines?

• chemical → thermal → electrical
• chemical → electrical → light
• thermal → chemical → light
• chemical → electrical → chemical

A lamp takes electrical energy and transforms it into both thermal and _________ energy.

• mechanical

• radiant

• chemical

• nuclear

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A radio converts electical energy into ________ energy.

Eating a cheeseburger converts chemical energy into...

• electical & thermal

• thermal & chemical

• mechanical & radiant

• mechanical & thermal

Dragging a heavy dresser across the room converts mechanical energy into ...

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