Year 7 Science · Unit 3 · Lesson 1
Foundation Worksheet
Learning Goals
Match each force to its type and description
Draw a line connecting each force on the left to its correct description on the right. Or write the matching letter next to each force. Then write C (contact) or NC (non-contact) in the Type column.
| Force | Type (C or NC) | Your answer | Description |
|---|---|---|---|
| Friction | A. Pulls every object with mass toward the centre of Earth — acts across empty space | ||
| Gravity | B. A magnet pulls a steel paper clip toward it — no touching required | ||
| Tension | C. The floor pushes back up on your shoes when you stand on it | ||
| Magnetism | D. Opposes sliding — your shoe grips the floor as you walk | ||
| Normal force | E. A rubbed balloon attracts small paper scraps without touching them | ||
| Electrostatic | F. A tug-of-war rope pulls both teams — a pulling force along a rope or wire |
Fill the gap
Choose the correct word from the word bank to complete each sentence. Two words will not be used.
A is a push or pull that can change an object's motion, speed, direction or shape. The unit of force is the (N), named after a famous scientist. Forces that need objects to be physically touching are called forces. When you slide a book across your desk, the between the surfaces slows the book down. The force that pulls a falling apple toward the ground is called . A compass needle points north because of a force — which acts without any touching.
1. A student says: "In a force diagram, the arrow just shows direction — its length doesn't matter." Is the student correct? Explain your answer.
2. A surfer at Bondi Beach is floating on her board. Name one contact force and one non-contact force acting on her, and describe the direction of each.
Wrap Up
In one sentence, what was the main idea of this lesson?