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7.1-3 vocabulary
| Term | Definition |
|---|---|
| Force | A push or pull exerted on an object in order change motion of the object; force has size and direction. |
| Static Friction | The force that resists the start of sliding motion two surfaces that are in contact and at rest. |
| Kinetic Friction | The energy of an object that is due to the object's motition. |
| Drag | A force parallel to the velocity of the flow; It opposes the direction of an aircraft and, in combination with thrust, determines the speed of the aircraft. |
| Field | Any region in which a physical force has effect. |
| Net Force | The combination of all of the force acting on an object. |
| Inertia | The tenency of an object to resist a charge in motion unless an outside force acts on the object. |
| Gravity | A force of attraction between objects that is due to their masses. |
| Free Fall | The motion of a body when only the force of gravity is acting on the body. |
| Orbit | The path that a body follows as it travels around another body in space. |
| Static Electricity | Electric charge at rest; genrally produced by friction or induction. |
| Semiconducter | An element or compound that conducts electric current better than an insulator does but not as well as a conductor does. |
| Electric charge | A fundamental property that leads to the electromagnetic interactions among particles that make up matter. |
| Electrical Conducter | A material in which charges can move freely. |
| Electrical insulator | A material in which charges cannot move freely. |
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rl.6797
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