An internal combustion engine is the sort of engine that most cars have. ‘Internal combustion’ means that a fuel and air mixture burns inside can-shaped cylinders inside the engine.
Why do cars have gears?
Cars have gears so that they can start off and move at different speeds. First gear is for starting off. First and second gears are for going slowly. Fourth and fifth gears are for going quickly.
Is it true? The tread of a tyre grips the road.
No. The rubber of the tyres grips the road. Tread is the pattern of grooves around the outside of a tyre. The grooves let water escape from between a tyre and a wet road so that the rubber can touch the road surface for grip.
What are springs and dampers?
Springs and dampers make up a car’s suspension, which gives the people inside a smooth ride. Springs let the car’s wheels move up and down as it goes over bumps. Dampers stop the car from bouncing after it’s passed over the bumps.
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