Relier Pairs Match the wordsVersion en ligne Labeling the types par jasone Gomez Alegria 1 2 3 4 5 6 7 This force affects every object on Earth. It is a force which pulls everything to the centre of the earth. This force acts on objects when they are in contact with a surface, such as the ground. It can be reduced by ensuring both surfaces are smooth. This is an upward force which acts in water, it acts on a object against gravity, and is why certain objects float. They can attract some materials. They can also repel other objects. They are usually made from iron. They have two ends called magnetic poles. This is a force which acts in water, it can slow objects down, reducing the affect of gravity. This can be any driving force, it may be a push or pull, but it could be an engine which forces an object forward. This is a force which acts in the air, it can slow objetcs down when they are moving against it. Or if hamessed could be used to move an object along.