45
Lesson 45 of 84 ยท Forces
LessonPulleys Pull Things Up (Part 2)
What You'll Learn
Things roll, slide, bounce, or spin depending on their shape and the forces acting on them.
Key Words
- simple machine
- lever
Steps
Step 1 โ Read
Talk about what you already know about Forces.
Step 2 โ Do
Build a simple lever with a ruler and pencil. Try lifting objects on one end by pushing the other.
Step 3 โ Observe
Compare what happened to what you predicted.
Step 4 โ Record
Tell the class one thing you learned today.
Check Your Understanding
Question 1
1 of 3Does a seesaw use a lever?
