Diffusion
an hour ago
jhmy276_85840
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17 QuestionsShow answers
  • Question 1
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    Q.

    Diffusion occurs only in solids

    answer choices

    True

    False

  • Question 2
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    Q.

    How do the particles move in diffusion?

    answer choices

    From a region of low concentration to a region of high concentration

    From a region of high concentration to a region of low concentration

    From a region of low concentration to a region of low concentration

    From a region of high concentration to a region of high concentration

  • Question 3
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    Q.

    How long does diffusion last?

    answer choices

    Until the concentration of particles in the system is equal

    (Select this answer and I swear i'll make it harder for you in the assessment task)

    Until a region in the system has a greater concentration of particles than the other

    Until the particles disappear from the system

  • Question 4
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    Q.

    The movement of particles is __________, resulting in the particles being spread throughout the container

    answer choices

    Structured

    In a straight line

    Random

    In curved, way motions

  • Question 5
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    Q.

    What happens to the coffee particles when coffee is added to hot water?

    answer choices

    They sink to the bottom of the cup

    They spread out

    They clump together

  • Question 6
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    Q.

    What does a 'region with high concentration' mean?

    answer choices

    An area with a SMALL number of particles

    An area with a LARGE number of particles

    An area with an UNEVEN number of particles

    An area with no particles

  • Question 7
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    Q.

    When does diffusion stop?

    answer choices

    After a day and a night

    When the particles are evenly spread out

    When there are no particles left

    When all the particles leave the system

  • Question 8
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    Q. Diffusion is the _______________ movement of particles freely in all directions to occupy the whole space available
    answer choices
    constant orderly
    constant random
    continuous
    fixed
  • Question 9
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    Q. Which gas will diffuse at the slowest speed?
    answer choices
    oxygen
    carbon dioxide
    bromine
    hydrogen
  • Question 10
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    Q. The picture  is an example of _________________.
    answer choices
    isotonic
    diffusion
    osmosis
    active transport
  • Question 11
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    Q. Diffusion is the movement of molecules from an area of _____ concentration to an ______ concentration
    answer choices
    High, low
    Low, high
    Low, low,
    High, high
  • Question 12
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    Q. The picture below is an example of _________________.
    answer choices
    osmosis
    isotonic
    diffusion
    active transport
  • Question 13
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    Q.

    What is DIFFUSION?

    answer choices
  • Question 14
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    Q. An increase in temperature does what to diffusion?
    answer choices
    Speeds it up
    Slows it down
    Has no effect
    I wish i knew. Really I do.
  • Question 15
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    Q. The faster an object moves, the ________ kinetic energy it has. 
    answer choices
    more
    less
    none of the above
    all of the above 
  • Question 16
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    Q. All matter is made of _____ that are constanly moving.
    answer choices
    insulators
    particles
    convection
    pieces of plastic
  • Question 17
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    Q. What happens to particles when they are heated?
    answer choices
    They speed up and spread out
    They slow down and compress
    They stop moving
    They move closer together and speed up
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