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Energy DUA Review

Quiz by Dianna Ritter

Grade 7
Science
North Carolina Standard Course of Study

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includes Teacher and Student dashboards

Measures 2 skills from
Grade 7
Science
North Carolina Standard Course of Study

7.P.2.2
7.P.2.4

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7 questions
Show answers
  • Q1

    A student plans to build a model rollercoaster for a science fair. The only energy for the car is the potential energy it contains. The student wants the car to roll from Point 1 to Point 2. Which design allows the car to roll to Point 2 by converting its potential energy into kinetic energy? 

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    30s
  • Q2

    The picture shows a pulley. How does a pulley help make work easier? 

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    It pushes materials apart. 

    It holds things together.

    It reduces the friction.

    It redirects the force.

    30s
    7.P.2.2
  • Q3

    A certain type of hybrid car utilizes a braking system in which energy is recovered and stored in batteries. This is an example of which type of energy conversion? 

    chemical energy converted to kinetic energy

    thermal energy converted to potential energy

    kinetic energy converted to potential energy

    chemical energy converted to thermal energy

    30s
    7.P.2.2
  • Q4

    Our class is studying the amount of energy stored in objects. If the same rock is put in four different places, at which location will the rock have the most potential energy? 

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    30s
    7.P.2.2
  • Q5

    A student uses the fulcrum and board shown below to move a large rock. The student's friends suggest ways to revise the design. Which suggestion best helps the student move the rock while using less force? 

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    completely remove the fulcrum

    apply force directly above the fulcrum

    put the fulcrum on top of the board

    move the fulcrum closer to the rock

    30s
    7.P.2.4
  • Q6

    In order for electricity from a battery to power a light bulb, the wire has to provide the electricity a path to do what? 

    charge the air molecules near the circuit

    jump from one battery terminal to the other

    change the chemical properties of the wire

    flow through the entire closed circuit

    30s
    7.P.2.4
  • Q7

    An incandescent bulb placed in a closed circuit works by allowing electrons to travel through a very thin piece of wire in the bulb. The bulb will then give off infrared radiation. This is an example of: 

    electrical energy being transformed into mechanical energy

    electrical energy being transformed in heat and light energy

    magnetic energy being transformed into electrical energy

    electrical energy being transformed into potential energy

    30s
    7.P.2.4

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