# Moving Objects

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- Created by: Jessica
- Created on: 27-05-10 14:29

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**Forces.**

- When 2 forces interact they exert
**EQUAL**and**OPOSITE**forces on eachother. - The
**RESULTANT**force has the same effect as the sum of a number of forces all acting together on an object. - Balanced forces.- resultant force = zero. An object will either remain stationary or continue at a constant speed.
- Unbalanced forces.- Resultant forces will be higher on one side. Object will accelerate. (speed up, slow down, or change direction.)

FORCE (N) = MASS (Kg) x ACCELERATION (m/s2).

**Distance time graphs**.- Slope represents speed. Steeper the slope, the larger the speed.

SPEED = DISTANCE TRAVELLED (m) / TIME TAKEN (s).

**Velocity time graphs**.- The slope represents acceleration. Steeper slope means larger acceleration.

The area under the velocity time graph represents **distance travelled.**

ACCELERATION (m/s2) = CHANGE IN VELOCITY (m/s) / TIME TAKEN (s).

**On the Road.**

- Frictional forces always oppose motion.
- Moving Vehicles experiance
**air**…

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