science 0.0 / 5 ? AllscienceScottish HighersAll boards Created by: joseph connoleCreated on: 21-05-18 12:42 what is a electromagnet ? A electromagnet is a magnet made by wrapping coils of wire round a iron or steel core and attaching it to a battery 1 of 13 what is a advantage of a electromagnet? you can turn it off? 2 of 13 what do you use to find a magnetic field? iron fillings 3 of 13 what is a composite material ? A material with more than one materiel 4 of 13 Example of a composite material? Carbon fibre made up of carbon fibres and a glue like polymer 5 of 13 what is a polymer ? a polymer is a substance with very long molecules. a polymer is a identical group of atoms repeated many times. 6 of 13 what is a natural polymer ? a natural polymer is something made my plants an animals 7 of 13 example of a natural polymer wool because sheep produce it 8 of 13 what is a synthetic polymer ? synthetic polymers are made by chemical reactions that are developed by scientists 9 of 13 example of a synthetic polymer a plastic bag because it is made out of polyethylene 10 of 13 properties of polyethylene take ages to wear down . strong and flexible 11 of 13 two types of polyethylene low density and strong density 12 of 13 what is polyvinyl chloride is are waterproof flexible used in waterproof clothing 13 of 13
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