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Science Grade 4 review

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  • Which is not an artificial source of light?
    firefly
    stove
    sparkler
    candle
  • Mediums of light (transparent, translucent, opaque): wooden door
    opaque
  • How much gravity an object has depends on its _______.
    weight
    mass
    speed
    equal
  • The farther apart two objects are, the __ their gravity.
    weaker
    stronger
    more equal
    equal
  • What is the SI unit used to measure force?
    kilograms
    grams
    pounds
    Newtons
  • What would happen if the Earth did not have any gravity?
    The lifespan of man and animals would drop sharply
    The moon would crash to earth
    life would cease to exist
    none
  • Mediums of light (transparent, translucent, opaque): paper
    translucent
  • Mediums of light (transparent, translucent, opaque): clear glass window
    transparent
  • Why do your feet stay on the ground instead of floating?
    volume and mass
    centrifugal force
    weight
    gravity
  • Mediums of light (transparent, translucent, opaque): stone wall
    opaque
  • Mediums of light (transparent, translucent, opaque): table
    opaque
  • What kind of matter does light move the fastest?
    firefly
    candle
    stove
    sparkler
  • The force of gravity acting on an object is the object's ______.
    mass
    weight
    matter
    friction
  • What happens when light hits an object?
    The object reflects the light.
    The light turns to corners.
    The light and the object do not form a shadow.
    The light curve around the object.
  • Which of the following has the strongest gravitational pull?
    earth
    a ball
    mooon
    Sun
  • How does light travel?
    no answer
    in a zigzag path
    in a straight path
    in a wavy path
  • Which of the following never changes no matter where in the universe?
    mass
    pound
    force
    weight
  • Which is the biggest source of light?
    The sun
    moon
    light bulb
    stove
  • The amount of matter in an object is.........
    pressure
    force
    weight
    mass
  • Two factors effecting the magnitude of the force of gravity between 2 objects are...
    mass and distance
    mass and matter
    distance and weight
    weight and mass
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