Energy Transformations & Circuits

Electrical Energy is transferred to _____ Energy.

• Thermal
• Solar
• Electrical
• None

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Energy transformations occur when...

• energy is created through conduction
• energy changes from one form to another
• two forces slide together that are touching
• a chemical reaction takes place

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The picture shows a microwave oven. As a microwave oven is operated, electrical energy is transformed into all of the following types of energy EXCEPT —

• solar
• light
• thermal
• mechanical

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The purpose of the panels is to change solar energy into ____________.

• light energy
• electrical energy
• chemical energy
• mechanical energy

Which of the following energy transformations occur when a lamp that is plugged into a wall socket is functioning correctly?

• Chemical to light
• Electrical to chemical
• Electrical to light
• Chemical to electrical

Which of the following devices transforms electrical energy into mechanical energy?

• An e-reader
• a fan
• a manual pencil sharpener
• ipod

What is Energy?

• The transfer energy when a force is applied over a distance.
• The ability to cause change or the ability to do work.
• The energy of an object has because of its motion.

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What is electrical energy?

• The energy that an electric current carries. When you plug something in, this energy flows.
• Energy carried in waves of vibrating matter. It cannot travel through empty space (it MUST have matter to travel)
• Energy stored in objects that are compressed or stretched like springs or rubber bands.

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What is mechanical energy?

• Stored energy that is released when the nucleus of atoms are split apart or fused together.
• The energy formed due to an object's motion, position or condition. It is both kinetic and potential.
• The energy due to the movement of atoms or molecules that make up an object. This energy moves from warmer objects to colder objects.
• The energy from the sun carried by electromagnetic waves. It can move through empty space (no matter needed).

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Electrical energy is...

• the energy form originated by electromagnetic waves or fields.

• the energy type due to the movement of electrons.

• the energy form which is present in vibrations in air.