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Fourth Grade (Grade 4) Simple Machines Questions

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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
Grade 4 Simple Machines
Grade 4 Simple Machines
What class lever is shown below?
Third Class Lever
  1. first class
  2. second class
  3. third class
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
A Ferris Wheel is what kind of simple machine?
  1. Fixed pulley
  2. Moveable pulley
  3. Wheel and axle
  4. Incline plane
Grade 4 Simple Machines
What type of pulley is shown below?
Fixed Pulley
  1. fixed pulley
  2. movable pulley
  3. block and tackle
Grade 4 Simple Machines
A wheelbarrow is an example of:
  1. Wedge
  2. Inclined Plane
  3. Lever
  4. Screw
Grade 4 Simple Machines
Look at the pulley and first class lever below.
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
Grade 4 Simple Machines
What type of pulley is shown below?
Movable Pulley
  1. fixed pulley
  2. movable pulley
  3. block and tackle
Grade 4 Simple Machines
Which letters represent the fulcrum, effort force, and load on the image below?
First Class Lever
  1. Fulcrum = A; Effort = B; Load = C
  2. Fulcrum = C; Effort = A; Load = B
  3. Fulcrum = A; Effort = C; Load = B
  4. Fulcrum = B; Effort = C; Load = A
Grade 4 Simple Machines
What class lever is shown below?
Second Class Lever
  1. first class
  2. second class
  3. third class
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