Lesson Worksheet: Mechanical Devices: Pulleys Science

In this worksheet, we will practice describing how pulleys work and why they are useful and identifying devices that use pulleys.


A pulley uses a downward force.

Fill in the blank. This makes it to lift heavy objects.

  • Aeasier
  • Bharder


James and Elizabeth are talking about why using a pulley makes lifting an object easier. Who is right?

  • AJames
  • BElizabeth


Which of these devices does not use a pulley?

  • ACrane
  • BWrench


Jacob is using a pulley to lift up a bucket containing bricks.

Which of these arrows shows the weight force of the bucket?

  • A
  • B

Fill in the blank: Jacob is using to help him lift the bucket.

  • Aair resistance
  • Bthe bucket’s weight force
  • Cthe force of gravity
  • Dwater resistance


Which image correctly shows the force Jackson is using to lift this box?

  • A2
  • B1


Yara is using a pulley to collect water from a well.

Fill in the blanks: The pulley the direction that Yara’s force acts in.

  • Achanges, push
  • Bchanges, pull
  • Cdoes not change, push
  • Ddoes not change, pull


Mason is using a pulley to lift a heavy box off the ground.

Fill in the blank: Mason is using a force to lift the box.

  • Apull
  • Bpush


True or False: The downward force applied on the rope of the pulley gets help from the force of gravity.

  • ATrue
  • BFalse


James needs to lift a heavy box up. Which of the following tools should he use?

  • A
  • B
  • C
  • D


Examine the following list:

  • Weight
  • Gravitational force
  • Rope
  • Downward pull

Fill in the blank: All the list items are forces acting on a pulley except for the .

  • Aweight
  • Bdownward pull
  • Cgravitational force
  • Drope

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