56
Lesson 56 of 84 · Forces
ExperimentEnergy from Moving Things (Part 2)
What You'll Learn
A wedge is a simple machine shaped like a triangle. A doorstop is a wedge!
Key Words
- pull
- balance
- weight
Materials Needed
- string
- weights
- tape
- ruler
- cardboard
Safety First
- Work in a well-ventilated area when using vinegar or other strong-smelling substances.
- Dispose of materials properly after the experiment.
- Handle glass items carefully to avoid breakage.
Steps
Step 1 — Read
Read and learn: A wedge is a simple machine shaped like a triangle. A doorstop is a wedge!
Step 2 — Do
Follow the steps one at a time.
Step 3 — Observe
Watch carefully. What happens?
Step 4 — Record
Draw and write about what you learned.
Check Your Understanding
Question 1
1 of 3Which simple machine is a ramp?