P9: Motion Flashcards
(7 cards)
1
Q
What is the equation for calculating speed?
A
Distance / Time
2
Q
A man runs 45 meters in 5 seconds, what is his speed?
A
45/5 = 9
9m/s
3
Q
What is acceleration?
A
Acceleration is an objects change in velocity per second
4
Q
Is speed a vector or scalar quantity?
A
Scalar
5
Q
How do you calculate acceleration?
A
Change in velocity / Time taken for the change
6
Q
Change in speed = 14m/s
Time taken for the change = 2s
Calculate the acceleration
A
14/2 = 7m/s^2
7
Q
On a velocity time graph, what part is is the distance travelled?
A
The area underneath the graph/line
