Heat Transfer

3. Any process that absorbs energy from the surroundings is ---.
6. Transfer of energy by the collisions of atoms & free electrons within a substance.
11. Temperature is the --- kinetic energy of the particle of a substance.
12. A good --- transfers energy quickly – allows heat to flow easily.
13. Both gases & liquids are ---.
14. A good --- transfers energy slowly – slows the flow of heat.
16. When you touch a nail stuck in ice cold flows from the nail into your hand – TRUE or FALSE.

1. What determines the direction of heat flow?
2. This form of energy transfer does not require a physical medium to move the energy.
4. Transfer of energy within a fluid by movement of the particles in currents.
5. Heat (a form of energy) is measured in ---.
7. Internal energy is the --- energy of the particles within a substance.
8. Transfer of energy via electromagnetic --- is called radiation.
9. Any process that releases energy into the surroundings is ---.
10. In thermal --- two objects placed in contact transfer heat from one to the other until they reach the same temperature and the transfer stops.
15. Heat is always the flow of energy from high temperature to low temperature – TRUE or FALSE