70
Lesson 70 of 84 · Motion and Forces
ExperimentSimple Machines: Inclined Planes (Part 3)
What You'll Learn
Electromagnets are temporary magnets created by running electricity through a coiled wire. They can be turned on and off and are used in motors, speakers, and MRI machines.
Key Words
- acceleration
- velocity
Materials Needed
- blocks
- spring scale
- stopwatch
- pencils
- toy cars
- ramps
Safety First
- Work in a well-ventilated area when using vinegar or other strong-smelling substances.
- Dispose of materials properly after the experiment.
Steps
Step 1 — Read
Read and learn: Electromagnets are temporary magnets created by running electricity through a coiled wire. They can be turned on and off and are used in motors, speakers, and MRI machines.
Step 2 — Do
Compare your results with a partner.
Step 3 — Observe
Observe what happens and describe it in detail.
Step 4 — Record
Record your observations in your science journal.
Check Your Understanding
Question 1
1 of 3Which simple machine is a ramp?