Unit 3E: Magnets and Springs

V Useful Words Magnetic Unit 3E: Vocabulary Useful Words Magnetic Non Magnetic Attraction / Attract Repulsion / Repel Bar Magnet Horseshoe Magnet Ring Magnet Iron Aluminium Poles A material that will be attracted to a magnet A material that will not be attracted to a magnet A FORCE pulling two objects together A FORCE pushing two objects apart A straight bar-shaped magnet A horseshoe shaped magnet, the two ends are the poles A doughnut shaped magnet, the two faces are the poles A metal which is magnetic A metal which is non-magnetic The two ends of a magnet V Unit 3E: Vocabulary-

Unit 3E: Forces Between Magnets Opposite poles attract each other Like poles repel each other D Unit 3E: Forces Between Magnets: L.O. 1, 2, 3 : NC: 4.2a

Unit 3E: Magnetic or Non Magnetic? Which objects are magnetic? Magnetic Non Magnetic Tennis ball Screw Shoe Marker Pen Keys Scissors Sweets A Unit 3E: Magnetic or Non Magnetic? : L.O. 4, 5, 6, 7 : NC. 4.2a

Unit 3E: Uses of Magnets: L.O. 8 D Unit 3E: Uses of Magnets: L.O. 8

Unit 3E: Which is the strongest magnet? How can we find out which magnet is the strongest? What equipment will we need? How will we know which magnet is strongest? How will we record our results? I Unit 3E: Which is the strongest magnet? : L.O. 9, 10 : NC. 1.2d, 1.2e

Unit 3E: Which is the strongest magnet: Results table. Number of paperclips picked up Magnet A Magnet B Magnet C Magnet D I Unit 3E: Which is the strongest magnet: Results table : L.O. 11, 12 : NC. 1.2h, j.

Unit 3E: Uses of Springs: L.O. 13 D Unit 3E: Uses of Springs: L.O. 13

Unit 3E: How Springs Work D Unit 3E: How Springs Work: L.O. 14, 15 : NC. 4.2 d

Unit 3E: Investigating Elastic Bands What do you think will happen if the catapult is pulled back further? Test what happens when the catapult is pulled back by different amounts. I Unit 3E: How Springs Work: L.O. 16 : NC. 4.2 d, e, 1.2 d, e, f, g, h, j, l

Unit 3E: Investigating Elastic Bands: Results Distance catapult pulled back Distance car travelled 2 cm 4 cm 6 cm 8 cm 10 cm The car travelled furthest when we pulled it back _______ cm This tells us that when the car is pulled back further, the force from the elastic bands is __________________ Can you explain why the results showed this? I Unit 3E: Investigating Elastic Bands: Results: L.O. 17,18,19 : NC. 4.2 d,e, 1.2 l

non-magnetic materials Unit 3E: Summary bar ring horseshoe opposite attract strong weak bar ring horseshoe like repel Have 2 ends called poles Different types Magnets Magnetic and non-magnetic materials Uses of magnets iron recycling steel rubber speakers MRI scanners fridge doors magnetic nickel non-magnetic aluminium wood Non-metals S Unit 3E: Summary

Springs S Unit 3E: Summary Playground rides Apply a force staplers stretch compress Playground rides staplers Uses of springs trampolines clockwork big force small force stretches more stretches less big force small force compresses more compresses less S Unit 3E: Summary