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Physical Science 2

Week of 3/23-3/27

Light form of energy that travels in a STRAIGHT line and can travel through empty space
Sound form of energy produced by vibrations
Electrical form of energy that flows in a circuit
Thermal form of energy that produces heat
Reflection the BOUNCING back of light rays EX: mirror
Refraction the BENDING of light rays as they pass through a different medium EX: straw in water
Prism a tool used to refract light and separate it into ROYGBIV
Transparent completely see-through because light is transmitted EX: a window
Translucent light is slightly transmitted, so you can see through a little bit EX: sheer curtains
Opaque can not see through at all because all light is absorbed EX: black sweater
Force a push or a pull
Friction a force that works against motion
Inertia an object in motion tends to stay in motion, and an object at rest stays at rest-- unless a force is applied to it EX: our bodies continue to go forward in a moving car even when brakes are applied.
Created by: ejohns02