level: Acceleration
Questions and Answers List
level questions: Acceleration
| Question | Answer |
|---|---|
| define acceleration | change in velocity per unit time |
| what is it called when something slows down | negative acceleration |
| what is the formula for acceleration? | ... |
| in the below formula, what is a? | acceleration |
| in the below formula, what is v? | final velocity |
| in the below formula, what is u? | initial velocity |
| in the below formula, what is t? | time |
| what is acceleration measured in? | ms⁻² |
| what is final velocity measured in? | ms⁻¹ |
| what is initial velocity measured in? | ms⁻¹ |
| what is time measured in? | s |
| describe how to use a light gate to measure acceleration | put double card on vehicle + record length of each let vehicle roll down ramp + through light gate record time taken for card 1 to pass through light gate. calculate and record initial speed. do same for card 2, final speed record time taken for both cards to pass through light gate use a=v-u/t |
| A car accelerates from 20 m s-1 to 80 m s-1 in a time of 10 s as shown in the graph below. Calculate its acceleration between 0 s and 10 s. | 6ms⁻² |