Physics Year 11 - Module 2 - Lesson 4
Newton's Laws and Friction
1. Key Ideas
The packages kept moving. The van stopped. Two different objects, one moment — and Newton's Laws explain exactly why.
- Newton's First Law — formal statement
- Why packages fly forward when a van brakes
2. Success Criteria
By the end, you should be able to:
- Newton's First Law — formal statement
- Newton's Second Law — F net = ma
- f = μF N and what μ represents
3. Key Terms
4. Activity: Build the Lesson Map
Use the lesson to complete the table. Keep answers brief but specific.
| Prompt | Your answer |
|---|---|
| Main concept | |
| Important example | |
| Common mistake to avoid | |
| How this links to the next lesson |
5. Short Answer Questions
1. Explain this lesson goal in your own words: "Newton's First Law — formal statement". Use one specific example from the lesson.
2. Apply this idea to a new example: "Newton's Second Law — F net = ma". Show your reasoning clearly.
3. Analyse why this idea matters for understanding Newton's Laws and Friction: "f = μF N and what μ represents".
6. Extend: Apply the Idea
A student gives a memorised answer about Newton's Laws and Friction but does not use evidence or reasoning.
Improve the answer by writing a stronger response that uses accurate terminology, a relevant example and a clear explanation.
7. Multiple Choice
1. What is the best first step when answering a question about Newton's Laws and Friction?
A. Identify the key concept being tested
B. Write every fact from memory
C. Ignore the command word
D. Skip examples and evidence
2. Which answer would show stronger understanding of Newton's Laws and Friction?
A. An answer with accurate terms and reasoning
B. A copied definition only
C. A single-word response
D. An answer with no example
3. What should you do if a question asks you to explain?
A. Link the idea to a reason or cause
B. List unrelated facts
C. Only draw a diagram
D. Write the shortest possible answer
8. Success Criteria Proof
Finish with evidence that you can do each success criterion.