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Heat (Grade 8)

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Thermal energy ALWAYS moves from warmer to cooler.
  1. True
  2. False
A material that doesn't transfer heat very well is called a(n)               .
  1. applicator
  2. protector
  3. insulator
  4. conveyor
Which of the following is not a form of heat transfer?
  1. conduction
  2. convection
  3. transpiration
  4. radiation
The transfer of heat by the movement of a mass or substance.
  1. Conduction
  2. Convection
  3. Radiation
The transfer of energy (heat) through space by electromagnetic waves.
  1. conduction
  2. convection
  3. radiation
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
The measure of how hot or cold something is is called:
  1. density
  2. temperature
  3. volume
  4. solid
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
To heat 1g of water by 1 degree Celsius requires
  1. 1 calorie
  2. 1 Calorie
  3. 1 joule
  4. 1 watt
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
  2. radiation
  3. convection
  4. heat
The room becomes warm when the furnace is turned on:               .
  1. conduction
  2. convection
  3. radiation
Bacon cooking in the frying pan is a form of:
  1. conduction
  2. convection
  3. radiation
When you add hot water to cold water, the cold water warms up because of
  1. insulation
  2. convection
  3. radiation
  4. solar energy
The first law of thermodynamics states:
  1. components of a system interact
  2. entropy of a closed system always increases
  3. a closed system always shifts toward disorder or homogeneity
  4. energy is always conserved
The process by which temperature drops as a gas expands, without the addition of heat, is called                 cooling.
  1. adiabatic
  2. thermodynamic
  3. spontaneous
  4. cyclonic
Why does a piece of steel heat up more than an equal mass of plastic when both absorb the same energy?

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