# forces scalars and vectors and acceleration

- Created by: KaleSalad
- Created on: 07-02-19 13:36

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- forces
- A force is a push or pull that is applied by one object on another
- Contact forces- the objects are physically touching such as a parachute in contact with the air
- magnets(fridge strips)
- tension( stretched elastic bands)
- Friction( heat generated)

- A scalar quantity has magnitude size only
- A vector quantity has magnitude and direction
- A vector quantity can be represented by an arrow, the length of the arrow represents the magnitude and the direction of the arrow shows its direction
- when we add vector quantities together we must consider the direction as well as the size
- The sum of two Vectors is known as the resultant

- A vector quantity has magnitude and direction
- Distance
- Distance is a measure of how the object has moved but doesn't indicate the direction it has moved in and is therefore a scalar quantity

- Scalars
- Mass
- Volume
- Speed
- Distance

- vectors
- Force
- Acceleration
- Velocity
- Weight
- displacement

- Acceleration
- Change in speed(m/s) / time taken(s)

- SUVAT Equations
- S-displacement
- U-initial velocity
- V-final velocity
- A-acceleration
- T-time

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