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Thermal Energy
Thermal Energy, Convection Conduction, Radiation, Expansion, Heat
| Question | Answer |
|---|---|
| thermal energy that flows between an object at a higher temperature to an object at a lower temperature | heat |
| Why does water in a glass beaker being heated from the bottom stay just as hot at the top? | convection |
| the transfer of energy between particles of matter or through empty space by electromagnetic waves | radiation |
| the increase in the volume of a substance that results from an increase in the substance's temperature | thermal expansion |
| How would a spoon become hot from stirring a hot cup of tea? | conduction |
| a material that reduces the transfer of thermal energy to a building in summer or from a building in winter | insulation |
| What determines an object's thermal energy? | the amount and kinetic energy of its particles |
| If the particles of two substances have the same average kinetic energy, then | the substances have equal temperatures. |
| On a sunny day, exposed rock on the top of a mountain gradually heats up. What causes the rock to become warm? | Light waves are transformed into heat energy in the rock |
| Popcorn being cooked in a microwave is an example of thermal energy transfer by radiation because microwaves cook using | electromagnetic waves |
| Wind is caused by convection currents in the atmosphere, which are produced when air absorbs energy from? | sunlight |
| The glass of a window pane feels cooler to the touch than the wood frame surrounding the glass. This is because | wood is a better thermal insulator than glass. |
| When objects at different temperatures are in contact the warmer object's temperature_______. | decreases |
| If two equal volumes of liquid are mixed together, what would be the resulting water temperature? | halfway between the starting water temperatures |
| When object's at different temperatures are in contact the cooler object's temperature_______. | increases |
| How do the particles change when liquid water changes to ice? | Energy is removed from the water, so the particles lock in place. |
| How does thermal energy flow when a student holds a piece of ice in her hand? | from her hand to the ice |
| Railroad tracks have gaps between the rails so that they will not buckle in hot weather because of | thermal expansion |
| A swimming pool would have more thermal energy than a hot cup of tea because the swimming pool has _______________________ molecules. | more |
Created by:
mark.campbell
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