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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 |