## Glossary of Physucs 112 Chapter 3 Review

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- Scalar
- A quantity specified by its magnitude, (a number and a unit.)

- Components
- The effective values of a force in directions other than the force itself.

- Vector
- A quantity specified by a magnitude and a direction, (a number, a unit, and a direction.)

- Resultant
- is a single force which will produce the same effect in both magnitude and direction as two or more concurrent forces.

- Displacement
- A vector or the magnitude of a vector from the initial position to a subsequent position assumed by a body.

- Sine
- ratio of the opposite side to the hypotenuse of a right-angled triangle.

- Force
- A vector quantity that tends to produce an acceleration of a body in the direction of its application.

- Cosine
- ratio of the adjacent side to the hypotenuse of a right-angled triangle.

- Concurrent forces
- two or more forces acting at the same point of an object.

- Tangent
- the ratio of the opposite side to the adjacent side of a right-angled triangle.