Lifting With a Pulley
From The Cat in the Hat Knows a Lot About That! · 2018
2 minK1st2ndScienceTechnology
Summary
Nick and Sally use a pulley to lift something heavy up high. The clip shows how pulling down on a rope can lift a load up — a friendly first look at how machines change the direction of a force.
Viewer safety
All ages
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Teaching resources
Discussion questions
Discussion
A pulley lets us pull down to lift something up.
- What were Nick and Sally trying to lift?
- Which way did they pull the rope, and which way did the load go?
- Why is using a pulley easier than lifting by hand?
Quick work-a-long
Vocabulary: pulley, rope, lift, load, direction.
Try it: Loop a string over a railing or hook and lift a small bag. Tell a partner which way you pulled.