linear motion

Question 1

what is linear motion

Answer 1

motion in a straight or curved line with all body parts moving at same speed, direction and time

Question 2

what is linear motion created by

Answer 2

a direct force which passes thought the centre of mass

Question 3

linear motion quantise include:

Answer 3

distance 
displacement 
speed
velocity 
acceleration

Question 4

calculation of velocity

Answer 4

displacement / time

measured in m/s

Question 5

calculation acceleration

Answer 5

change in velocity / time

measured in m/s2

Question 6

what are the graphs of linear motion

Answer 6

distance/time graph
speed/time graphs
velocity/time graphs

Question 7

what is displacement

Answer 7

the shortest straight line route between two positions

Question 8

what is velocity

Answer 8

the rate of change of displacement / speed given in a direction

Question 9

what is zero velocity on a graph

Answer 9

when the line touches or crosses the x axis

Question 10

area under a speed / time graph

Answer 10

shows distance travelled as speed x time

Question 11

area under a velocity / time graph

Answer 11

shows displacement as velocity x time