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Heat (Grade 8)

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Thermal energy ALWAYS moves from warmer to cooler objects.
  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 means of the movement of a substance is known as
  1. conduction.
  2. convection.
  3. radiation.
The transfer of energy (heat) through space by means of electromagnetic waves is
  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
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
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 due to                .
  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 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.
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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