Thermal Expansion and Contraction
8th - 9th grade
250 times
Physics
66%average accuracy
3 years ago
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10 QuestionsShow answers
  • Question 1
    30 seconds
    Q. 3. If the atoms of an object are moving or vibrating fast, the temperature would be...
    answer choices
    Hot
    Cold
    Unknown
  • Question 2
    30 seconds
    Q. 4. If the atoms of an object are moving or vibrating slow, the object would feel...
    answer choices
    Cold
    Hot
    Unknown
  • Question 3
    20 seconds
    Q. What is Thermal Contraction 
    answer choices
    A Potato
    A decrease in a materials  volume when its temperature decreases 
    The movement of fluids in a cycle because of convection 
    A material through which  thermal energy does not flow easily.
  • Question 4
    20 seconds
    Q. What is Thermal expansion?
    answer choices
    The transfer of thermal energy between materials by the collisions of particles 
    Is a decrease in a materials volume when temperature decreases 
    An increase in a materials volume when temperature increases
    Chicken fried rice
  • Question 5
    60 seconds
    Q. Many objects, such as train tracks and road joints, are specifically designed to allow extra space for ...
    answer choices
    thermal energy
    specific heat
    thermal expansion
    conductors
  • Question 6
    10 seconds
    Q. A bimetallic strip is made up of _____________________ welded together.
    answer choices
    two metals of the same kind 
    two different metals that expand and contract unequally
    two different metals that expand and contract equally
  • Question 7
    20 seconds
    Q. The picture shows a bimetallic strip in a fire alarm. When there is a fire outbreak, the bimetallic strip will get hot, ....
    answer choices
    bend downwards, complete the circuit and the alarm rings.
    bend upwards, open the circuit and the alarm will not ring.
    becomes longer, open the circuit and the alarm will not ring.
  • Question 8
    30 seconds
    Q. Objects gain heat and _________. 
    answer choices
    expand
    contract
  • Question 9
    30 seconds
    Q. The liquid in the thermometer rises when it is placed in the hot water because ___________. 
    answer choices
    it gains heat from the hot water and expands.
    loses heat from the hot water and contracts. 
    the surrounding air is too warm. 
    the liquid is boiling. 
  • Question 10
    20 seconds
    Q. When objects contract upon cooling...
    answer choices
    volume increases and density increases.
    volume increases and density decreases.
    volume decreases and density decreases.
    volume decreases and density increases.
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