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Simple Machines Questions - All Grades

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Grade 6 Simple Machines

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Grade 1 Simple Machines
A doorknob is an example of which simple machine?

Door Knob
  1. lever
  2. pulley
  3. inclined plane
  4. wheel and axle
Grade 8 Simple Machines
Grade 8 Simple Machines
Comparing a machine's work output with work input refers to
  1. a watt.
  2. mechanical efficiency.
  3. mechanical advantage.
  4. a joule.
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 5 Simple Machines
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 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 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 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
Grade 3 Simple Machines

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Grade 5 Simple Machines
A screw
  1. uses a wheel and axle to help move objects.
  2. uses a bar to lift heavy objects.
  3. is made of two inclined planes.
  4. is an inclined plane wrapped around an axle.
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