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Combo Chapter Review
Heat , Electricity and Sound
| Question | Answer |
|---|---|
| another name for non-contact force | field force |
| temperature where everything stops moving | absolute zero |
| electrical charges that attract | positive and negative |
| this allows electrical charges to move freely | conductor |
| this determines the speed of sound | medium |
| The SI temperature scale | Kelvin |
| electrical charges that repel | positive and positive |
| ways for an object to be charged | contact , friction |
| this does not allow electrical charges to move freely | insulator |
| this determines the loudness of the sound | intensity |
| the heat needed to raised the temperature 1 degree for 1 gram of a substance | specific heat |
| creates image of unborn baby by reflecting sound waves off a boundary | ultrasound |
| measure of how hot or cold an object is | temperature |
| transfer of energy due to temperature differences; always hot to cold | heat |
| scientific device used to measure temperature | thermometer |
| hunting tool of dolphins, owls, bats, killer whales | sonar |
| Non-SI temperature scales | Celsius, Fahrenheit |