Motion Flashcards
1
Q
speed =
A
distance/time
2
Q
velocity is…
A
speed with a given direction (vector)
3
Q
average speed =
A
total distance/ total time
4
Q
how to find gradient distance/time graph
A
it is the speed (rise over run)
5
Q
how to find gradient speed/time graph
A
the acceleration (change in speed/change in time)
6
Q
distance travelled in speed/time graph
A
is the area under the graph, calculate the area of whatever shape appears
7
Q
what is deceleration
A
negative acceleration
8
Q
what is the acceleration of free fall
A
for an object near to the surface of the earth, is constant and 9.8m.s squared
9
Q
what is terminal velocity
A
it is when the air resistance is equal to the weight of an object when it falls, when it was increasing in speed, but then it reached terminal velocity and the speed became constant
