Pulleys
Science: Year 5 & 6 National Curriculum, topic 5.3.3
Pulleys
Pulleys are wheels with rope or cord looped over. Pulleys are used on cranes.
Forces and pulleys
- A force can be passed through the pulley.
- A pulley can be described as a force multiplier.
- A force multiplier is a simple machine.
Multiplying force with pulleys
- Using more than one wheel allows you to lift heavier things.
- But using more than one wheel will mean you have to pull the object further.
Test yourself on Pulleys
How can you lift heavier things with a pulley system?
What is correct about pulleys?
Which of these construction vehicles uses a pulley?