Revision

Overview

This lesson is for pulling the whole springs topic together. You should be able to move between practical planning, graph interpretation, Hooke’s law, and short calculations without treating them as separate topics.

What You Need to Know

• You should be able to explain extension, force, spring constant, and Hooke’s law.
• You should be able to describe how a springs investigation is planned and how results are recorded.
• You should be able to interpret a force-extension graph and identify direct proportionality.
• You should be able to use spring ideas in simple calculations and practical applications.

How to Work Through It

1. Start with quick retrieval of the key words and relationships from the topic.
2. Work through mixed questions on planning, graphs, and calculations.
3. Mark your answers carefully and correct anything unclear.
4. Finish by listing the spring skills that still need more practice.

Check Your Understanding

• Can you explain the difference between length and extension?
• Can you describe what Hooke’s law says in words?
• Can you calculate a spring constant or use one in a question?
• Can you suggest how to improve a springs investigation?

Common Mistakes

• Mixing up force and mass.
• Forgetting that direct proportion means a straight line through the origin.
• Treating spring calculations and practical work as unrelated when they are based on the same model.

Next Steps

• Use the Hooke’s law questions to target any weak graph or calculation skills.
• Keep a short list of spring vocabulary and equations ready for later revision.