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0654 Matter, Thermal Properties & Transfer of Thermal Energy

Jeffrey Piggott 25 questions 1,256 views

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Questions in this quiz (25)

  1. 1A circular metal disc is heated.
    Which quantity decreases?
    1. Aits density
    2. Bits diameter
    3. Cits thickness
    4. Dits volume
  2. 2The same quantity of thermal (heat) energy is given to two objects X and Y. The temperature rise of object X is less than the temperature rise of object Y.
    What accounts for this difference?
    1. AX has a larger thermal capacity than Y.
    2. BX is a better thermal conductor than Y.
    3. CY has a larger thermal capacity than X.
    4. DY is a better thermal conductor than X.
  3. 3A swimmer feels cold after leaving warm water on a warm, windy day.
    Why does she feel cold even though the air is warm?
    1. AThe less energetic water molecules on her skin escape quickly.
    2. BThe more energetic water molecules on her skin do not escape quickly.
    3. CThe water on her skin does not evaporate quickly enough to keep her warm.
    4. DThe water on her skin evaporates quickly and cools her skin.
  4. 4A substance loses thermal energy (heat) to the surroundings at a steady rate.
    The graph shows how the temperature of the substance changes with time.

    What could the portion PQ of the graph represent?
    Image for question 4
    1. AA gas condensing
    2. BB gas cooling
    3. CC liquid cooling
    4. DD liquid solidifying
  5. 5A student wishes to check the upper and the lower fixed points on a Celsius scale thermometer.
    She has four beakers P, Q, R and S.
    Beaker P contains a mixture of ice and salt.
    Beaker Q contains a mixture of ice and water.
    Beaker R contains boiling salt solution.
    Beaker S contains boiling water.

    Which two beakers should she use to check the fixed points?
    Image for question 5
    1. AA P and R
    2. BB P and S
    3. CC Q and R
    4. DD Q and S
  6. 6The same quantity of thermal energy is supplied to two solid objects X and Y. The temperature increase of object X is greater than the temperature increase of object Y.

    Which statement explains this?
    1. AA X has a lower melting point than Y.
    2. BB X has a lower density than Y.
    3. CC X has a lower thermal capacity than Y.
    4. DD X is a better thermal conductor than Y.
  7. 7What is meant by the fixed points of the scale of a liquid-in-glass thermometer?
    1. AA the distance between one scale division and the next
    2. BB the highest and lowest temperatures that the thermometer can record
    3. CC the maximum and minimum depth to which the thermometer should be submerged in a liquid
    4. DD the two agreed temperatures used for marking the temperature scale.
  8. 8A liquid at room temperature fills a flask and a glass tube to level X.
    The flask is now placed in ice, and the liquid level in the tube falls to level Y.

    Why does the level fall?
    Image for question 8
    1. AA The flask contracts.
    2. BB The flask expands.
    3. CC The liquid contracts.
    4. DD The liquid expands.
  9. 9The melting points of ethanol and mercury are shown.
    Which of these two liquids is/ are suitable to use in a liquid-in-glass thermometer to measure temperatures of –50°C and –120°C?
    Image for question 9
    1. AA ethanol only
    2. BB ethanol and mercury
    3. CC mercury only
    4. DD neither ethanol nor mercury
  10. 10Which quantity gives the thermal capacity of a beaker?
    1. AA the thermal energy required to change the state of the beaker at constant temperature
    2. BB the thermal energy required to raise the temperature of the beaker by 1°C
    3. CC the total mass of hot liquid that the beaker can hold
    4. DD the total volume of hot liquid that the beaker can hold

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Description
Quiz for 0654 Coordinated Sciences
Language
English
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