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Gravity is a force that pulls. Earth’s gravity pulls objects down (to its center). Everything with mass has gravity. Anything that takes up space is matter, that has mass.
Friction is a force that happens when two things rub together.
Force arrows show the force and its direction on an object. A man is moving a box across the floor. He has to push it. Pushing it exerts force on the box. Forces can make an object start or stop moving, speed up or slow down. the man pushes the box in the direction he wants to move it.
Forces are pushes and pulls. A force has two characteristics: size and direction. When forces act, they can change the shape of the things they act on. There is a bigger change from a bigger force.
Here are some questions on push and pull forces.
Forces are everywhere. You use force to open your a pack of snacks, to ride a bicycle, to blow hot soup. When you make something move, you exert force on the object. Many athletes use force to change the direction of objects to score a goal. When more force is applied, the object will have more speed. When objects are heavier, more force is needed.
Here are some questions to help you understand how force works.