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Fourth Grade (Grade 4) Simple Machines Questions

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Grade 4 Simple Machines
Which type of machine is a bicycle?
Spring - Bicycle
  1. simple
  2. compound
Grade 4 Simple Machines
A bicycle is a compound machine that is made up of several simple machines.
  1. True
  2. False
Grade 4 Simple Machines
If friction is ignored, which pulley requires more effort force to lift the bucket?

AMovable Pulley
BFixed Pulley
  1. Pulley A
  2. Pulley B
  3. Pulley A and B will require the same effort
Grade 4 Simple Machines
A Ferris wheel is an example of which kind of simple machine?
  1. Fixed pulley
  2. Movable pulley
  3. Wheel and axle
  4. Incline plane
Grade 4 Simple Machines
A pulley and first class lever are shown.
Pulley Fixed Pulley

First Class Lever First Class Lever

Which statement best describes the relationship between the pulley and first class lever?
  1. The pulley is similar to the first class lever because it has a fulcrum between the load and effort force.
  2. The pulley is similar to the first class lever because it has an effort force between a fulcrum and load.
  3. The pulley is similar to the first class lever because it has load between a fulcrum and effort force.
  4. There are no similarities between the pulley and first class lever.
Grade 4 Simple Machines
Which is not an example of a simple machine?
  1. screw
  2. pulley
  3. fulcrum
  4. inclined plane
Grade 4 Simple Machines
The tools shown are a combination of which two simple machines?
Spring - Garden Tools
  1. lever and screw
  2. wedge and lever
  3. screw and pulley
  4. pulley and wedge
Grade 4 Simple Machines
In a pulley system, if you apply force downwards, what direction will the load move?
  1. In pulley systems the load is fixed and does not move
  2. It depends on the particular pulley system
  3. Downwards
  4. Upwards
Grade 4 Simple Machines
In a first class lever (like a see-saw) the movement of the lever is
  1. opposite to the direction of the force.
  2. in the same direction as the force.
  3. independent of the direction of force.
  4. perpendicular to the direction of the force.
Grade 4 Simple Machines
Which of the following objects is an example of this class lever?
Third Class Lever
  1. pliers
  2. nut cracker
  3. fishing pole
  4. wheelbarrow
Grade 4 Simple Machines
A wheelbarrow can be an example of which simple machine?
  1. Wedge
  2. Inclined Plane
  3. Lever
  4. Screw
Grade 4 Simple Machines
Lucas has a large rock in a wheelbarrow. In this situation the rock is the                .
  1. fulcrum
  2. lever
  3. load
  4. wheel
Grade 4 Simple Machines
A single fixed pulley can change the direction of force.
  1. True
  2. False
Grade 4 Simple Machines
In a second class lever, the load is placed in between the fulcrum and the effort. Given this information, which of the following is NOT a second class lever?
  1. Bottle Opener
  2. Fishing Rod
  3. Nut Cracker
  4. Paper Cutter
Grade 4 Simple Machines
Which is true about the amount of work that must be done to lift a bucket using the pulley shown compared to lifting the same bucket without a pulley?
Movable Pulley
  1. Less work is done when lifting with the pulley.
  2. Less work is done when lifting without the pulley.
  3. The same amount of work is done lifting with or without the pulley.
Grade 4 Simple Machines
Mike has a load of bricks in his wheelbarrow and is finding it difficult to lift. What could Mike do to make it easier for him to lift?
  1. Reduce the load (number of bricks) in the wheelbarrow
  2. Increase the length of the lever (wheelbarrow handle)
  3. Shift the load (bricks) closer to the fulcrum
  4. All of the above
Grade 4 Simple Machines
The part of the screw that wraps around the cylinder is called the                .
  1. pitch
  2. thread
  3. treads
  4. inclined plane
Grade 4 Simple Machines
What type of pulley is shown?
Fixed Pulley
  1. fixed pulley
  2. movable pulley
  3. block and tackle
Grade 4 Simple Machines
Mechanical energy may cause changes in motion through the application of force and the use of a simple machine such as a pulley, lever, or inclined plane.
  1. True
  2. False
Grade 4 Simple Machines
What class lever is shown?
Third Class Lever
  1. first class
  2. second class
  3. third class
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