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Physical Science Quarter 1

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  • Four runners are in a race. What can you infer about the runner that crosses the finish line first?
    None of the above
    The runner had the slowest speed.
    The runner had the longest stride.
    The runner had the most energy.
  • What is the most powerful form of light and heat?
    Sun
  • John packed a flashlight for a camping trip. In terms of energy, what will the flashlight help him do?
    it will change electrical energy into sound
    it will change energy of motion into light
    it will change stored energy into light
  • Sound can make objects move.
    True
    False
  • What is potential energy?
    stored energy (no movement)
  • What form of energy is lightning?
    sound
    all of the above
    light
    heat
  • Current electricity needs a ______________ to work.
    circuit
  • What is a switch?
    something that opens and closes a circuit
  • What materials make good insulators of electricity?
    rubber, glass, plastic
  • What type of materials allow electricity to flow easily?
    conductors
  • What is energy?
    The ability to do work
  • What materials make good conductors of electricity?
    metals like iron, copper, aluminum
  • The heat felt from the sun is example of this type of heat transfer.
    convection
    conduction
    radiation
  • What is kinetic energy?
    this is energy of motion.
  • What type of materials allow electricity to flow easily?
    conductors
  • An egg frying in a pan is an example of what type of heat transfer.
    radiation
    conduction
    convection
  • What happens when a baseball player hits a ball?
    all of the bat's energy changes to sound
    the ball's energy and motion change
    all of the ball's energy changes to sound
  • How is sound created?
    when an object vibrates
  • What is static electricity?
    a build up of charges
  • A hot air balloon is an example of what type of heat transfer.
    conduction
    convection
    radiation
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