graphing motion

Question 1

what is a motion graph?

Answer 1

graphs which are used to analyse a variety of aspects of moving objects
- e.g. displacement, time, speed, velocity

Question 2

common kinds of motion graphs?

Answer 2

displacement vs time, velocity vs time

Question 3

what is the difference between graphs with and without displacement associated?

Answer 3

without displacement: only one quadrant
with displacement: two quadrants

Question 4

how to find the distance in a speed vs time graph?

Answer 4

find the area of each segment, add together

Question 5

how to calculate the velocity of a displacement vs time graph

Answer 5

find the gradient, using displacement/time
positive gradient = positive velocity
negative gradient = negative velocity
the grater the gradient, the greater the speed

Question 6

what does the gradient mean in a velocity vs time graph?

Answer 6

gradient = the acceleration, which is found through change in velocity/time

Question 7

rules of negative + positive velocity

Answer 7

1. The velocity cannot be a negative number
2. Only the direction, in relation to the origin, can be either positive or negative

Question 8

what is the area in a velocity vs time graph?

Answer 8

the displacement, as velocity is how far away from the origin the object is, and the time is how long it has been travelling. multiplying the two will give you the distance between the object and the origin

Question 9

how to find total displacement in a velocity vs time graph?

Answer 9

positive displacement - negative displacement = total