Energy Transformations -

​Energy Transformations

By Jada Lee

The movement of energy from one place to another or from one object to another.

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​Energy Transfer

Energy is transferred from the bowling ball to the pins, causing the pins to fall over.

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Electrical energy is transferred to light energy to make the lamp work.

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Mechanical Energy - Energy of Motion

Multiple Choice

Water flows through turbines in dams like the one shown below. The flowing water makes the turbines spin. What type of energy is used to make the turbines spin in this type of dam?

• Light energy
• Thermal energy
• Sound energy
• Mechanical energy

​What is Electrical Energy?

​A form of energy that comes from the movement of charged particles.

​What is Chemical Energy?

​Energy stored in chemicals that are in things like batteries and food.

Multiple Choice

What type of energy does a battery have?

• Mechanical

• Chemical

• Electric

Multiple Choice

What type of energy does your food have?

• Light

• Sound

• Electric

• Chemical

When talking about energy transformations there is often a type of energy that is USED and a type that is PRODUCED!
Pay attention to which one the question is asking!

The energy that is being used is transformed into the energy that is produced.

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REMEMBER!

The lamp is:
USING ELECTRICAL ENERGY and is PRODUCING LIGHT (and heat) ENERGY

The oven is:
USING ELECTRICAL ENERGY and is PRODUCING HEAT ENERGY

Multiple Choice

The computer uses ______ energy to turn on.

• Thermal

• Electrical

• Light

• Mechanical

​What is Light Energy?

Light energy travels in waves. This form of energy is one that we can see.

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Multiple Choice

Which of the following uses electrical energy to produce both light and sound? 

• flashlight
• television
• lamp
• candle

​What is Thermal Energy?

​Thermal energy - energy from the motion of particles in matter (Heat!)

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​Cool hands become warm when rubbed together. Try it!

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​What is Sound Energy?

​A type of energy made by air vibrations.

Multiple Choice

How does a stove transform energy?

• Mechanical to sound

• Electric to Thermal

• Chemical to Mechanical

• Light to sound

Multiple Choice

A hair dryer changes electric energy to...

• heat and sound energy

• mechanical and chemical energy

• chemical and light energy