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Grade 4 Science Quiz: Pulleys and Gears

Quiz by Arie Rosenberg

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20 questions
Show answers
  • Q1

    Force is:

    a machine that produces motion or power for doing work 

    to move something into or out of a particular position

    a push or a pull; a natural power or effect that is able to change the speed or direction of something

    an imaginary line around which an object rotates

    30s
  • Q2

    A motor is:

    a machine that produces motion or power for doing work

    a complete turn that is made by something around its centre point or line

    energy used to do something or complete work

    something, such as a good position or condition, that helps to make someone or something better or more likely to succeed than others 

    30s
  • Q3

    Torque is: 

    speed

    a complete turn that is made by something around its centre point or line

    an axle

    a force that causes something to rotate

    30s
  • Q4

    A load is:

    a force that causes something to rotate

    a push or a pull; a natural power or effect that is able to change the speed or direction of something.

    the amount of work done or expected to be done

    a group of gears working together to accomplish work

    30s
  • Q5

    Effort is

    a complete turn that is made by something around its centre point or line.

    energy used to do something or complete work

    something, such as a good position or condition, that helps to make someone or something better or more likely to succeed than others.

    30s
  • Q6

    Work is 

    a lever

    a group of gears working together to accomplish work

    force applied over a distance

    a load

    30s
  • Q7

    A gear train is

    a group of levers

    a load

    a train that delivers gears

    a group of gears working together to accomplish work

    30s
  • Q8

    Axis means

    a machine for chopping trees

    an imaginary  line around which an object rotates

    wheel

    lever

    30s
  • Q9

    Revolution means

    wheel 

    a complete turn that is made by something around its centre point or line

    the natural power that is able to change the speed or direction of something

    produces power

    30s
  • Q10

    Advantage means:

    something that makes someone or something less likely to succeed

    to increase force

     something, such as a good position or condition, that helps to make someone or something better or more likely to succeed than others 

    to increase speed

    30s
  • Q11

    Both pulleys and gears can give you a mechanical advantage.

    true
    false
    True or False
    30s
  • Q12

    There are three types of pulleys: fixed, moveable, and compound. 

    true
    false
    True or False
    30s
  • Q13

    Fixed pulleys give you a mechanical advantage while moveable pulleys can only change the direction of a force.

    false
    true
    True or False
    30s
  • Q14

    You can calculate the mechanical advantage of a pulley system by measuring the amount of rope used. 

    false
    true
    True or False
    30s
  • Q15

    When you get a mechanical advantage from a pulley system, the trade off is that you will have to pull more rope to lift the load.

    true
    false
    True or False
    30s

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