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Phase Change MidUnit Test Review

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  • Based on their arrangements in the picture, what state of matter is shown?
    gas
    solid
    liquid
  • The snowcone below sat outside for 30 minutes and then melted. What do we know about the snowcone AFTER it melted?
    energy was transferred into the snowcone
    energy was transferred out of the snowcone
  • The snowcone below sat outside for 30 minutes and then melted. What do we know about the snowcone BEFORE it melted?
    It was a solid that had molecules that moved in place
    It was a liquid that had molecules that flowed around each other
    It was a solid that had molecules that flowed around each other
    It was a liquid that had molecules that moved in place
  • Lee has a substance in a closed container. The molecules move in place. What will happen if energy is transferred in?
    the molecules will move faster and become a liquid
    the molecules will move slower and become a liquid
    the molecules will move faster and become a gas
    the molecules will move slower and become a solid
  • Based on their arrangements in the picture, what state of matter is shown?
    solid
    liquid
    gas
  • Which number represents freezing?
    3
    three
  • The snowcone below sat outside for 30 minutes and then melted. What do we know about the snowcone AFTER it melted?
    It was a liquid that had molecules that moved in place
    It was a solid that had molecules that moved in place
    It was a solid that had molecules that flowed around each other
    It was a liquid that had molecules that flowed around each other
  • Ava said she could tell what phase a substance is in just by looking at it. How can she do this?
    She could tell by the way the molecules move around each other
    She could tell by the amount of space the substance takes up
    She could look at the temperature
    She could look at the different molecules inside
  • Which bulb submerged in water would have the highest amount of pressure?
    3
    1
    2
  • Based on their arrangements in the picture, what state of matter is shown?
    gas
    solid
    liquid
  • Liquid oxygen and liquid helium are very different, but they have one thing in common. That one thing is...
    they are moving around freely and flying apart
    they are moving and flowing around each other
    they are always changing, but they move around
    they are locked together and moving in place
  • Which number represents evaporation?
    2
    two
  • Zoe's barn door will not close when the temp gets hot outside, but in colder months it closes easily. Why? CHOOSE 2
    When thermal energy transferred in, the molecules lost kinetic energy
    When thermal energy transferred in, the door contracted
    When thermal energy transferred in, the door expanded
    When thermal energy transferred in, the molecules gained kinetic energy
  • Which number represents melting?
    one
    1
  • Which bulb submerged in water would have the least amount of pressure?
    1
    2
    3
  • Which number represents condensation?
    four
    4
  • A solid piece of butter is placed over heat on the stove. After some time, the butter becomes a liquid. Why?
    the butter molecules got smaller
    the butter molecules became more loosely connected
    the butter molecules were destroyed
    the butter molecules changed into water
  • This model shows a solid ice cube. How should we fix this model to better represent a solid and why?
    The model should not be changed
    Make the arrows longer because solids have more kinetic energy
    Remove all of the arrows since solids do not have any kinetic energy
    Shorten the arrows because there is less kinetic energy in a solid
  • Which TWO things are true about gravity in the water cycle?
    Gravity determines the speed of how water falls to Earth in precipiation
    Gravity drives all the processes seen in the water cycle
    Gravity changes the speed of water going through soil during collection
    Gravity creates clouds during condensation
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