describing motion along a line

Question 1

what is distance?

Answer 1

how far an object has moved not considering direction

Question 2

what is displacement?

Answer 2

includes both the distance moved by the object measured in a straight line from the start point to the end point and the direction of that straight line.

Question 3

what is speed?

Answer 3

how fast you are going

Question 4

what is velocity?

Answer 4

the speed in a given direction

Question 5

what does an object moving in a circle mean?

Answer 5

the speed is constant but the direction is constantly changing

Question 6

when can a distance - time graph be drawn

Answer 6

when the object moves in a straight line

Question 7

how can the speed be calculated from a distance - time graph?

Answer 7

the speed is the gradient

Question 8

how can acceleration be calculated from a distance - time graph?

Answer 8

by drawing a tangent and measuring the gradient of the graph at this point.

Question 9

what is acceleration?

Answer 9

the change in velocity in a certain amount of time

Question 10

how can distance be calculated from a velocity-time graph?

Answer 10

the distance travelled is equal to the area under the graph