Concept Questions Temperature and Heat Transfer Name: Date

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Name: _________________________
Date : _________________________
Flynt - __ Period
____th Grade Science
1. How does temperature relate to kinetic energy?
2. Describe the process of thermal expansion.
3. Provide three examples of instruments that work due to thermal expansion.
4. Calculate the temperature value for “room temperature” (20°C) for all three scales.
Solve for each variable, showing your work step by step.
5. If the standard human body temperature is 98.6°F, then what is human body
temperature in Kelvin? Write out the equations that you need to use. Solve for each
variable, showing your work step by step.
6. At what temperature value will the Celsius temperature exactly equal the Fahrenheit
temperature? Show your work!
7. Is there a temperature at which all three temperature scales have the same value?
Explain your answer.
8. A glass of cold water whose particles have a low kinetic energy was placed on a
table. The average kinetic energy of the cold water increased and the average kinetic
energy of the part of the table under the glass decreased. Explain what happened.
9. A metal ball is placed in a pan of boiling water for 5 minutes. The temperature of the
metal ball increases because the particles in the ball speed up. What has also
increased?
a. The density of the ball.
b. The average kinetic energy of the ball.
c. The wavelength of radiation waves given off by the ball.
d. The mass of the ball.
10. Can heat be transferred from a cold object to a hot object? Explain your answer.
11. Why might one object feel cold to the touch, while another feels warm to the touch,
even though both objects are at the exact same temperature? (Assume that the
temperature of your hand is not changing between objects.)
12. How does density affect convection?
13. Two objects with different temperatures are in contact. Which of the following
happens to their thermal energies?
a. Their thermal energies remain the same.
b. Thermal energy passes from the cooler object to the warmer object.
c. Thermal energy passes from the warmer object to the cooler object.
d. Thermal energy passes back and forth equally between the two objects.
14. In most energy transfers, some energy is lost. Often this occurs when thermal
energy is transferred to the surrounding air instead of an object. What type of
energy transfer is occurring during the loss?
a. Radiation.
c. Conduction.
b. Convection.
d. Conservation.
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