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Thermal Energy and Heat

Quiz by Robert Stephenson

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18 questions
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  • Q1
    When heat is added or removed from a substance, it may change its state. What state will most likely result if heat is added to a liquid?
    It will change into a semi-solid.
    It will change into a solid.
    It will change into a gas.
    It will change into a plasma.
    30s
  • Q2
    A slice of cheese is 3.0°C and is sitting on a dish that is 3.0°C. If the dish and cheese are in the refrigerator that is set to 3.0°C, which of the following statements will be true?
    Heat will not flow because there is not temperature difference.
    Heat will flow from the air in the refrigerator to the cheese and the dish.
    The temperature of the air in the refrigerator will decrease and the temperature of the cheese will increase.
    The temperature of the cheese will increase and the temperature of the dish will decrease.
    30s
  • Q3
    Mildred takes a pound of frozen hamburger meat out of the freezer and puts it into the refrigerator. Which of the following best describes the direction of the heat flow?
    From the air in the freezer to the air in the refrigerator.
    From the hamburger to the air outside the refrigerator.
    From the hamburger to the air in the refrigerator.
    From the air in the refrigerator to the hamburger.
    30s
  • Q4
    A hot cooking pot is placed on a cold bench. When will the heat from the pot stop flowing into the bench?
    When the pot has lost all of its heat.
    When the bench is as hot as the pot was.
    When the bench is warmer than the pot.
    When the pot and bench are at the same temperature.
    30s
  • Q5
    Arielle notices that the air in her math classroom is much warmer than the air in her science classroom. Which statement describes how the air particles are different in her colder science classroom?
    They move more freely.
    They have less energy.
    They are vibrating more.
    They are moving faster.
    30s
  • Q6
    Josh puts his cold metal spoon into a bowl of hot mashed potatoes. Which process takes place when the spoon touches the mashed potatoes?
    The temperature of the spoon increases, but its thermal energy does not change.
    Heat is not transferred and the spoon's temperature will remain constant.
    Energy flows as heat from the warmer mashed potatoes to the colder spoon.
    The thermal energy of both the mashed potatoes and the spoon increases.
    30s
  • Q7
    What is the average kinetic energy of the individual particles of an object called?
    Convection
    Conduction
    Thermal Energy
    Temperature
    30s
  • Q8
    Which has more thermal energy, an iceberg or a pot of boiling water?
    The boiling water because it will melt the iceberg.
    They both have an equal amount of thermal energy.
    The iceberg because it has more particles.
    The pot of boiling water because it has a higher temperature.
    30s
  • Q9
    Which of the following statements is true?
    The particles in an object at 40°C are moving faster than particles at 100ºC.
    The particles in an object at 40°C are moving slower than particles at -­40ºC.
    The particles in an object at 40°C are moving slower than particles at 35ºC.
    The particles in an object at 40° C are moving faster than particles at 0ºC.
    30s
  • Q10
    What causes convection currents?
    Heat is transferred from one particle of matter to another between two objects.
    The particles in a solid object increase their kinetic energy.
    Electromagnetic radiation travels through a vacuum.
    Expanding molecules reduce the fluid's density, causing it to rise upwards.
    30s
  • Q11
    What causes the weather systems on Earth?
    Conduction
    Radiation
    Convection
    30s
  • Q12
    Why do you burn yourself when you touch a hot pan while making dinner?
    Convection
    Conduction
    Radiation
    30s
  • Q13
    Why do you feel cooler when you jump in a swimming pool on a hot summer day?
    Convection
    Conduction
    Radiation
    30s
  • Q14
    Why is the air in the upper story of a two-story house warmer than the lower story?
    Radiation
    Convection
    Conduction
    30s
  • Q15
    Why does a heat lamp keep the food hot at a fast food restaurant?
    Radiation
    Conduction
    Convection
    30s

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