Write TRUE if the statement is correct and FALSE if it is not.

____1. Light travels in a straight line when it passes through a single medium.
_____2. The light that strikes a thick cardboard bends and finds another way to pass through it.
_____3. Light travels faster than sound.
_____4. A shadow is formed in behind on object when it blocks the light.
_____5. Light is blocked by opaque material like a steel cabinet.
_____6. When a vibration is slow, fast moving waves are produced.
_____7. Sound wave is created in response to a vibration.
_____8. Convection is the transfer of heat through solid materials.
_____9. Plastic and woods are good conductors.
_____10. Conduction is the transfer of heat from one place to another by movement of fluids.
_____11. Heat by conduction travels from a cool body to a hot body.
_____12. The sun's heat travels through liquid.
_____13. Heat from the sun is radiant heat.
_____14. Heat in boiling water travels by conduction.
_____15. When an object is cold, it has a high temperature.​