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NCSCOS Grade 7 Physical Science - 7.P.2 Diagnostic Energy

Quiz by NCDPI

Grade 7
Science
North Carolina Standard Course of Study

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9 questions
Show answers
  • Q1
    Niagara Falls is a good example of __________________.
    Potential energy being transformed into kinetic energy
    Energy being destroyed
    Kinetic energy being transformed into potential energy
    Energy being created
    30s
    7.P.2.1
  • Q2
    Which of the following has kinetic energy?
    a battery
    an archer’s bow that is drawn back
    a rolling bowling ball
    a rock sitting at the top of a hill
    30s
    7.P.2.1
  • Q3
    When riding a roller coaster, you go up and down many hills. When do you have the maximum potential energy?
    as you go up each hill
    at the top of each hill
    at the bottom of each hill
    as you go down each hill
    30s
    7.P.2.2
  • Q4
    Potential energy that depends on height is called _________________
    Nuclear energy
    Kinetic energy
    Elastic potential energy
    Gravitational potential energy
    30s
    7.P.2.1
  • Q5
    Which example involves the transformation of chemical energy directly into light energy?
    a glow stick
    a hydroelectric dam
    a wind mill
    photosynthesis
    30s
    7.P.2.3
  • Q6
    To cook food, an oven converts electrical energy into ________ energy.
    chemical
    sound
    nuclear
    thermal (heat)
    30s
    7.P.2.3
  • Q7
    The law of conservation of energy states that _____________________
    energy is neither created or destroyed, only changed in form
    energy is lost in the process
    energy is destroyed in the process
    energy is created in the process
    30s
    7.P.2.2
  • Q8
    How can simple machines make work easier?
    By adding more work on the object than originally applied
    By increasing the friction between the machine and the object
    By decreasing the force needed to complete the task
    By removing the force of gravity on the object
    30s
    7.P.2.4
  • Q9
    Which simple machine would be the most efficient for lifting an object 30 meters off the ground?
    Screw
    Pulley
    Wedge
    Wheel and Axle
    30s
    7.P.2.4

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