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3rd Grade Unit 3 Sum
3rd Grade Unit 3 Summative Review
Question | Answer |
---|---|
The form of energy that powers a hair dryer. | Electrical |
Potential energy is ____________ energy. | Stored |
How do a light and a mirror interact? | The mirror reflects the light. |
What must happen for a shadow to form? | Light must be blocked by an object. |
What can you feel after you rub an eraser against a paper? | Heat |
This object changes electrical energy to mechanical energy. | A fan |
What form of energy does rubbing hands produce? | Thermal |
Fuel | A form of stored energy. |
Light travels: | In straight lines in one direction. |
_______________ gives off both light energy and heat. | An electric light bulb |
A source of heat, but not a source of light. | Rubbing your hands together. |
Conduction | Thermal energy flowing from one object to another through direct contact. |