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Lesson 1 of 84 · Forces
ExperimentNewton's First Law: Objects at Rest
What You'll Learn
Newton's first law states that an object at rest stays at rest and an object in motion stays in motion unless acted on by an unbalanced force. This is called inertia.
Key Words
- gravity
- friction
Materials Needed
- cardboard
- marbles
- paper clips
- rubber bands
- blocks
Safety First
- Keep small objects away from young children.
- 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 about Forces and write down three key facts.
Step 2 — Do
Build a simple circuit using a battery, wire, and light bulb. Then add a switch and test what happens when you open and close it.
Step 3 — Observe
Observe what happens and describe it in detail.
Step 4 — Record
Record your observations in your science journal with measurements and descriptions.
Check Your Understanding
Question 1
1 of 3What does Newton's third law state?