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Science Flashcards

QuestionAnswer
The transfer of heat energy between objects thermal energy
Energy that is transferred between objects that are different temperatures Heat
Heat transfers from ____ objects to _____ objects Hot objects to cold objects
If you put your warm hand on a cold desk, heat would transfer from your WARM hand to the COLD desk
The measure of the average kinetic energy of the particles in an object is Temperature
If you add heat to water, you (increase or decrease) temperature and the kinetic energy (increases or decreases) Increase (for both)
Name the 3 scales temperature is measured in: FAHRENHEIT CELSIUS KELVIN THINK K(elvin) F(ahrenheit) C(elsius)
Which temperature scale is always used by scientists CELSIUS
The lowest temperature on the Kelvin scale is 0 K
What is the lowest possible temperature where matter stops moving or vibrating in place? Absolute zero
the amount of heat needed to raise the temperature of 1 gram of a substance by 1 degree Celsius. Specific heat
The amount of heat needed to raise the temperature of a substance depends on: WHAT THE SUBSTANCE IS HOW MUCH OF IT IS BEING HEATED WHAT RISE IN TEMPERATURE OCCURS
Go on slides 14-18 and 20-24 and 27
Water has a specific heat of 4.18 Joules. Use the specific heat to explain how water heats up and cools down. WATER HAS A HIGHER SPECIFIC, SO IT WILL TAKE A LONG TIME TO HEAT UP AND A LONG TIME TO COOL DOWN.
The specific heat capacity of sand is ________ J/kg/◦C, and the specific heat capacity of sea water is ____? 800 J/kg/◦C 3900 J/kg/◦C.
Where might you experience this idea with sand having a lower specific heat capacity than sea water? Explain. At the beach, the sand could be very hot, but the sea water will still be cool. This is because sand has a lower specific heat than sea water. This means that the sea water will take a longer time to heat up than sand.
Because particles have kinetic or moving energy, the more moving energy, the more________ thermal energy (heat). (The hotter the object will be. )
Created by: user-2019060
 

 



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