Friction is a contact force because it only exists when two surfaces are touching. Key Stage 3 Meaningįriction is a force that acts to slow an object down when two solid surfaces are in contact.Ībout Friction Friction is a force so it is measured in Newtons. Write down which surface made the spring go longest. Repeat this by dragging it along a table and the tarmac outside. Pull the piece of wood by the spring along the carpet and measure how long the spring is as you drag it. Take a flat piece of wood and attach spring to one end. When shoes get older, how does the bottom of the shoes look different and do shoes get more slippery or less slippery as they get old?įriction of different surfaces 1.Who has the slipperiest shoes and how do slippery shoes look different from shoes that are not slippery?.You might try to answer the following questions: Take off one of your shoes and look at the bottom of your shoe with a magnifying glass. Experimentsįriction and Shoes Good shoes are designed to have a high friction surface on the sole. Sometimes a low friction surface is called "slippery". A surface could be described as high friction or low friction. The smoother a surface is, the less friction an object will experience. The rougher a surface is, the more friction an object will experience when it is moving. Friction depends on the texture of a surface. Singular Noun: Friction Plural Noun: Friction About Friction Friction can only happen when two surfaces are touching so it is called a " Contact Force". Friction is a force that slows things down when two surfaces are touching each other.
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