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Third Grade (Grade 3) Simple Machines Questions

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Grade 3 Simple Machines
Which is an example of a second class lever?
  1. Broom
  2. Screw
  3. Wheelbarrow
  4. Scissors
Grade 3 Simple Machines

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An image of a pulley is shown. Which phase from the passage best describes the image?
Movable Pulley
  1. changes the direction of the force, or push or pull
  2. moves up and down with the load
  3. system that uses more than one pulley
Grade 3 Simple Machines

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The wheelbarrow is a machine that has a lever. Marcus is using a wheelbarrow to move rocks. Marcus places the rocks in the tub of the wheelbarrow. He then lifts the handles and pushes the wheelbarrow so it rolls on its wheel.
Wheelbarrow
Where is the load?
  1. the tub
  2. the wheel
  3. the handles
Grade 3 Simple Machines

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A hockey stick is an example of a lever.
  1. True
  2. False
Grade 3 Simple Machines

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A delivery person must move a heavy box up a ramp. Would it be easier to move the box up short, steeply tilted ramp or a long, gradually tilted ramp?
  1. short, steeply tilted ramp
  2. long, gradually tilted ramp
Grade 3 Simple Machines

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A hammer can be used as a lever. Which term best describes the handle of the hammer?
  1. arm
  2. load
  3. fulcrum
Grade 3 Simple Machines

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Which is the best definition of fulcrum?
  1. straight bar
  2. push or pull
  3. turning point
Grade 3 Simple Machines

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Which is another term for block and tackle?
  1. fixed pulley
  2. movable pulley
  3. compound pulley
Grade 3 Simple Machines

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Keisha is going to the amusement park. Which ride at the amusement park is the best example of an inclined plane?
  1. Ferris wheel
  2. Bumper cars
  3. Roller coaster
  4. Merry-go-round
Grade 3 Simple Machines

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A screwdriver is a tool that can be used as a wheel and axle. It has a handle to hold and turn. The handle attaches to a long shaft that ends in a flat or pointed tip.

Which part of the screwdriver is the axle?
  1. tip
  2. shaft
  3. handle
Grade 3 Simple Machines

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Which item(s) is used as an example of a screw in the passage?
  1. pencil
  2. person
  3. two boards
  4. spiral staircase
Grade 3 Simple Machines

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Which shape looks most like a wedge?
  1. Equilateral Triangle v1
  2. Square
  3. Circle
Grade 3 Simple Machines

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Three jars have three different lids that screw on. Each lid is the same size. Each lid has a different thread distance. The table shows the number of times each lid must be fully turned to close the lid completely.
JarTurns
Jar A5
Jar B7
Jar C3

Which jar lid has the most widely spaced threads?
  1. Jar A
  2. Jar B
  3. Jar C
Grade 3 Simple Machines

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Mike is designing a steering wheel for his soapbox racer car. Which steering wheel would make it easiest for Mike to steer his car?
  1. a small wheel with a large axle
  2. a small wheel with a small axle
  3. a large wheel with a large axle
  4. a large wheel with a small axle
Grade 3 Simple Machines

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A ceiling fan uses a wheel and axle.
  1. True
  2. False
Grade 3 Simple Machines

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The teeth of a zipper work like screws.
Zipper
  1. True
  2. False
Grade 3 Simple Machines
A simple machine that is a slanted surface is a/an                  inclined plane                 .
Grade 3 Simple Machines
A device with few parts that makes work easier by changing the strength or direction of a force is a/an                  simple machine                 .
Grade 3 Simple Machines
An inclined plane wrapped around a column is a/an         screw        .
Grade 3 Simple Machines

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Grace turns the handle of a pencil sharpener. Which part of a wheel and axle is the handle of the pencil sharpener?
  1. axle
  2. wheel
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