Unit 3E: Magnets and Springs
Unit 3E: Magnets and Springs
Magnets and Springs
Unit 3E: Magnets and Springs
Unit 3E: Vocabulary
Useful Words
Magnetic
A material that will be attracted to a magnet
Non Magnetic
A material that will not be attracted to a magnet
Attraction / Attract
A FORCE pulling two objects together
Repulsion / Repel
A FORCE pushing two objects apart
Bar Magnet
A straight bar-shaped magnet
Horseshoe Magnet
A horseshoe shaped magnet, the two ends are the
poles
Ring Magnet
A doughnut shaped magnet, the two faces are the
poles
Iron
A metal which is magnetic
Aluminium
A metal which is non-magnetic
Poles
The two ends of a magnet
Unit 3E: Vocabulary-
Unit 3E: Forces Between Magnets
Opposite
Like
poles
poles
attract
repel
each other
each other
Unit 3E: Forces Between Magnets: L.O. 1, 2, 3 : NC: 4.2a
Unit 3E: Magnetic or Non Magnetic?
Which objects are magnetic?
Magnetic
Tennis ball
Screw
Shoe
Marker Pen
Keys
Scissors
Sweets
Unit 3E: Magnetic or Non Magnetic? : L.O. 4, 5, 6, 7 : NC. 4.2a
Non Magnetic
Unit 3E: Uses of Magnets
Scrap yards
(Cranes)
Hospitals
(MRI Scan)
Compasses
What are magnets
used for?
Speakers
Locking Doors
Fridge Magnets
Unit 3E: Uses of Magnets: L.O. 8
Unit 3E: Which is the strongest magnet?
1. How can we find out which magnet is
the strongest?
2. What equipment will we need?
3. How will we know which magnet is
strongest?
4. How will we record our results?
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.
Results Table
Magnet
Number of paperclips picked up
Magnet A
Magnet B
Magnet C
Magnet D
Unit 3E: Which is the strongest magnet: Results table : L.O. 11, 12 : NC. 1.2h, j.
Unit 3E: Uses of Springs
Car/bike
suspension
Clockwork
Trampolines
What are springs
used for?
Staplers
Closing Doors
Playground Rides
Unit 3E: Uses of Springs: L.O. 13
Unit 3E: How Springs Work
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.
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?
Unit 3E: Investigating Elastic Bands: Results: L.O. 17,18,19 : NC. 4.2 d,e, 1.2 l
Unit 3E: Summary
bar
ring
horseshoe
bar
like
repel
ring
Magnets
iron
steel
nickel
rubber
aluminium
wood
Non-metals
Unit 3E: Summary
horseshoe
Unit 3E: Summary
Springs
stretches
more
stretch
compresses
less
Unit 3E: Summary