# 7.4- physics

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1.
10 points
It turns out there are three ways ________ flows.
2.
10 points
Conduction only occurs between two materials at different ______________ and when they are touching each other.
3.
10 points
In _______________, heat can also be transferred through materials.
4.
10 points
Materials that conduct heat easily are called thermal ___________ and those that conduct heat poorly are called thermal insulators.
5.
10 points
______________ is the transfer of heat through the motion of fluids such as air and water.
6.
10 points
All objects with a temperature above absolute zero emit _________ radiation.
7.
10 points
To _______ means to give off.
8.
10 points
Thermal ___________ comes from the thermal energy of atoms.
9.
10 points
Thermal energy is also absorbed by ____________.
10.
10 points
In nature, heat transfer always occurs from _____ to cold until thermal equilibrium is reached.