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Simple Machines Questions - All Grades

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Grade 6 Simple Machines
Look at the image of the pulley. If bucket A has a mass of 5 kg, which of the following statements is true about the minimum effort force required to lift the bucket if friction is ignored?
Fixed Pulley
  1. It would take 0 kg of effort to lift the bucket.
  2. It would take 2.5 kg of effort to lift the bucket.
  3. It would take 5 kg of effort to lift the bucket.
  4. It would take 10 kg of effort to lift the bucket.
Grade 9 Simple Machines
If a machine has a mechanical advantage less than one, which of the following must be true?
  1. The Effort Force is less than the Resistance Force.
  2. The Effort Distance is greater than the Resistance Distance.
  3. The Effort Distance is less than the Resistance Distance.
  4. The Effort Force and Resistance Force are the same.
Grade 6 Simple Machines
Look at the image of the pulley. If bucket A has a mass of 5 kg, which of the following statements is true about the minimum effort force required to lift the bucket if friction is ignored?
Movable Pulley
  1. It would take 0 kg of effort to lift the bucket.
  2. It would take 2.5 kg of effort to lift the bucket.
  3. It would take 5 kg of effort to lift the bucket.
  4. It would take 10 kg of effort to lift the bucket.
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
Which letters represent the fulcrum, effort force, and load on the lever diagram?
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 9 Simple Machines
To increase the DISTANCE that a machine moves a load, you
  1. should increase the MA.
  2. should decrease the MA.
  3. should make the MA 1.
  4. should decrease the efficiency.
  5. can't change distance, only force.
Grade 4 Simple Machines
Look at the pulley and first class lever 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
What type of pulley is shown?
Movable Pulley
  1. fixed pulley
  2. movable pulley
  3. block and tackle
Grade 4 Simple Machines
What class lever is shown?
Second Class Lever
  1. first class
  2. second class
  3. third class
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