1. Topic-
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Newton's First Law
Inertia and Motion |
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2. Content-
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Balanced Forces
Unbalanced Forces
Acceleration
Force
Inertia
Newton's First Law of Motion
Mass |
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3. Goals: Aims/Outcomes-
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1. Students understand that objects with mass have inertia.
2. Students know that inertia resists motion.
3. Students know that massive things don't like to move or stop moving. |
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4. Objectives-
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California 8th Grade
1. Standard 2.c 0 Students know when the forces on an object are balanced,
the motion of the object does not change.
2. Standard 9.a - Plan and conduct a scientific investigation to test
a hypothesis.
3. Standard 9.g - Distinguish between linear and non-linear relationships
on a graph of data.
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5. Materials and Aids-
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| 2 Metersticks, 3 large metal washers, metric ruler (w/groove), marbles
(3), scissors, calculator, small Dixie cup. Technology used: Document
camera/Projector. |
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6. Procedures/Methods-
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A. Introduction-
1. What is the purpose of seat belts?
2. What do air bags do?
3. Why are semi trucks so hard to stop? |
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B. Development-
1. Lab Demonstration of Bodies at Rest
2. Lab Demonstration of Bodies in Motion
Show students how to set-up each lab. |
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C. Practice-
1. Students perform lab of Bodies at Rest - Students weigh down
their cup with pennies to see if things at rest really do stay at
rest (when the same force is applied).
2. Students will reproduce and graph their data.
3. Students will use increase force (by rolling marbles down a ramp)
to see if objects in motion really do stay in motion. |
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D. Independent Practice-
1. Students will respond to questions as a lab follow-up.
2. Students will collect and record data.
3. Students will calculate averages.
4. Students will analyze their graphs.
5. Students will reflect on concept of lab. |
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E. Accommodations (Differentiated Instruction)-
1. Students work in groups.
2. Students allowed to turn in work late as per accommodation. Students
may need time to digest information.
3. Visuals and step-by-step demos. |
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F. Checking for understanding-
1. Practice STAR questions
2. Practice concept questions
3. Write a reflective summary of lab (staple to lab). |
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G. Closure-
1. Conclude with why Newton's 1st Law is important in real-life.
2. Reinforce that Newton's 1st Law applies to both moving an non-moving
objects. |
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7. Evaluation-
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| Will be completed by evaluator. |
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8. Teacher Reflection-
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1. Reflect on what worked with class (did they understand)?
2. Could lab be modified? |
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