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Acceleration
Chapter 6
| Question | Answer |
|---|---|
| An object is accelerating if it is...? | Speeding up Speeding up as it changes direction Slowing down Slowing down as it changes direction Changing direction |
| What is acceleration | Acceleration is the rate of change of velocity with respect to time. |
| What type of quantity is acceleration | Acceleration is a vector quantity. |
| What is the SU unit of time | (ms^2) metres per second squared |
| What is the formula for average acceleration | Change in velocity over time taken final velocity - initial velocity over time taken a = v-u over t a = delta v over delta t |
| What is Constant (uniform) acceleration | Constant (uniform) acceleration is motion in which the velocity changes at the same steady rate. |
| What is Constant acceleration | Constant acceleration is also where the average acceleration between any two points in a journey is always the same. |
| What do the letters in uvast mean | u=initial velocity v=final velocity a=acceleration s=distance/displacement t=time |
| What are the three kinematic equations which describe the motion of an object under constant acceleration | v=u+at s=ut+1/2at^2 v^2=u^2+2as |
Created by:
21JulianM
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