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The "foundation" is the load-bearing part of a building that is usually below ground level.

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Tension is something in the state in which it is getting stretched tight.

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The attraction or repulsion that arises between particles, that are electrically charged, because of their motion.

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Friction is the resistance that two objects encounter when they come into contact with one another.

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An Applied force is a force applied on some sort of object by something or someone else. For example, when someone is pushing a desk across a room, there is an applied force.

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The buoyancy of something is its tendency or ability to float in water or another fluid.

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Air resistance is the frictional force air exerts against a moving object. As an object moves, air resistance slows it down.

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Compression is the action of compressing or being compressed, and also, the reduction in volume of the fuel mixture in an internal combustion engine before ignition.

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Gravity is a force that attracts all masses towards the center of the Earth or anywhere else with a gravitational force.

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To push, you must exert force onto an object. To pull, you must hold onto the object and exert force to move towards yourself.