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## Heat

1.
Thermal energy ALWAYS moves from warmer to cooler objects.
1. True
2. False

2.
A material that doesn't transfer heat very well is called a(n)               .
1. applicator
2. protector
3. insulator
4. conveyor
3.
Which of the following is not a form of heat transfer?
1. conduction
2. convection
3. transpiration

4.
The transfer of heat by means of the movement of a substance is known as
1. conduction.
2. convection.
5.
The transfer of energy (heat) through space by means of electromagnetic waves is
1. conduction.
2. convection.

6.
Thermal energy can be transferred by conduction from one piece of matter to another only if the two pieces are                .
1. liquids
2. touching
3. solids
4. fuel
7.
The measure of how hot or cold something is is called                .
1. density
2. temperature
3. volume
4. solid

8.
Which of the following temperatures is the same as absolute zero?
1. 0 degrees Celsius
2. -273.15 degrees Fahrenheit
3. 0 Kelvin
4. 0 degrees Fahrenheit
9.
Raising the temperature of 1 g of water by 1 degree Celsius requires                .
1. 1 calorie
2. 1 Calorie
3. 1 joule
4. 1 watt

10.
As water begins to boil in a kettle, the hotter water at the bottom of the kettle closest to the stove begins to rise and the cooler water above sinks and warms. This is an example of                .
1. conduction
3. convection
4. heat
11.
The room becomes warm when the furnace is turned on due to                .
1. conduction
2. convection

12.
Bacon cooking in the frying pan is a form of                .
1. conduction
2. convection
13.
When you add hot water to cold water, the cold water warms up because of                .
1. insulation
2. convection
4. solar energy

14.
The first law of thermodynamics states that
1. components of a system interact.
2. the entropy of a closed system always increases.
3. a closed system always shifts toward disorder or homogeneity.
4. energy is always conserved.
15.
The process by which temperature drops as a gas expands, without the addition of heat, is called                 cooling.