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Explore the forces at work when pulling against a cart, and pushing a refrigerator, crate, or person. Create an applied force and see how it makes objects move. Change friction and see how it affects the motion of objects.
When you push something, you’re applying force to move it away from you. Think about pushing a swing or a shopping cart. On the other hand, when you pull something, you’re using force to bring it closer. Imagine pulling a door open or tugging a kite down from the sky.
A force is an influence that can cause an object to change its velocity unless counterbalanced by other forces. The concept of force makes the everyday notion of pushing or pulling mathematically precise. Because the magnitude and direction of a force are both important, force is a vector quantity.
Learn about the concepts and applications of forces in physics, such as Newton's laws of motion, common forces, free-body diagrams, and more. This web page is part of a free online textbook on university physics.
Learn about the different types of forces, such as applied force, gravity, normal force, friction, air resistance, tension and spring force. Find definitions, examples, formulas and diagrams for each force type.
22 paź 2022 · Forces are the hidden power behind everything that happens in our world—and beyond. Forces make your heart race and your lungs pump; they swing the planets round the Sun and bind atoms tight. Think of anything, absolutely anything, that's going on in the universe right now, and you can guarantee that somewhere, somehow forces are responsible.
We can use a force like pushing or pulling to change direction. The direction an object moves depends on the direction of the push. We can use forces to change the shape of an object.
