topic 2 motion & forces (graphs)

Question 1

displacement time graph - what is the gradient

Answer 1

velocity

Question 2

displacement time graph - sharper gradient means..

Answer 2

faster speed

Question 3

displacement time graph - negative gradient means..

Answer 3

it’s returning back to starting point

Question 4

displacement time graph - curved line means..

Answer 4

the velocity is changing

Question 5

velocity time graph - the gradient is..

Answer 5

acceleration

Question 6

velocity time graph - sharper gradient means..

Answer 6

more acceleration

Question 7

velocity time graph - negative gradient means..

Answer 7

returning back to starting point

Question 8

velocity time graph - horizontal line means..

Answer 8

constant speed

Question 9

velocity time graph - 0 velocity means..

Answer 9

stationary

Question 10

velocity time graph - curved line means..

Answer 10

acceleration is changing

Question 11

how do you determine constant speed

Answer 11

• measure distance travelled, use stopwatch for time taken
• use speed = distance / time

Question 12

how do you find average speed

Answer 12

• work out total distance travelled + find time taken for the whole journey
• use speed = distance/time

Question 13

how do you use light gates

Answer 13

• set up 2, one at start and one at end then measure distance between them
• as soon as the object passes through the 1st it will measure the time taken to reach the 2nd
• use speed = distance/time