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Seventh Grade (Grade 7) Heat Transfer Questions

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Grade 7 Heat Transfer
Which of the following best explains the scenario below?

On a summer morning, John walks barefoot across his paved driveway with no problem. However, later that afternoon he steps barefoot onto the same driveway and must quickly run off because the bottoms of his feet feel like they are burning.
  1. As the temperature increased during the day, the particles in the pavement moved slower and the thermal energy increased.
  2. As the temperature increased during the day, the particles in the pavement moved slower and the thermal energy decreased.
  3. As the temperature increased during the day, the particles in the pavement moved faster and the thermal energy increased.
  4. As the temperature increased during the day, the particles in the pavement moved faster and the thermal energy decreased.
Grade 7 Heat Transfer
Thermal energy can be transferred by
  1. conduction only
  2. convection only
  3. radiation only
  4. conduction, convection, and radiation
Grade 7 Heat Transfer
A                   is a material through which thermal energy does not flow easily.
  1. thermal energy
  2. thermal conductor
  3. thermal insulator
  4. temperature
Grade 7 Heat Transfer
A material through which thermal energy flows easily is called a                    .
  1. thermal contraction
  2. temperature
  3. thermal conductor
  4. convection current
Grade 7 Heat Transfer
                  is an increase in a material's volume when its temperature increases.
  1. Heat
  2. Thermal conductor
  3. Thermal expansion
  4. Thermal energy
Grade 7 Heat Transfer
This is the transfer of energy that occurs when molecules bump into one another.
  1. Radiation
  2. Conduction
  3. Convection
  4. Coriolis effect
Grade 7 Heat Transfer
Tires sliding on pavement when brakes are applied exemplify                  .
  1. mechanical energy
  2. thermal energy
  3. chemical energy
  4. nuclear energy
Grade 7 Heat Transfer
                    is a decrease in a material's volume when its temperature decreases.
  1. Thermal contraction
  2. Conduction
  3. Convection
  4. Radiation
Grade 7 Heat Transfer
Which has the most thermal energy?
  1. 1 cup of cold water
  2. 1 gallon of cold water
  3. 1 cup of hot water
  4. 1 gallon of hot water
Grade 7 Heat Transfer
What changes if something is being heated?
  1. Conduction
  2. Energy
  3. Electricity
  4. Temperature
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