kinematics

Question 1

definition of scalars

Answer 1

physical quantities that have only magnitude

Question 2

definition of vectors

Answer 2

physical quantities that have both magnitude & direction

Question 3

definition of distance

Answer 3

total length covered by a moving object regardless of the direction of motion

Question 4

definition of displacement

Answer 4

distance measured in a straight line from a fixed reference point

Question 5

definition of velocity

Answer 5

change in rate of displacement

Question 6

formula for velocity

Answer 6

velocity = total displacement / total time taken

Question 7

definition of acceleration

Answer 7

rate of change of velocity/speed

Question 8

formula for acceleration

Answer 8

acceleration = change of velocity / time taken

Question 9

how to find speed of object through graph

Answer 9

speed of object = area under distance-time graph

Question 10

how to find change in distance of an object

Answer 10

change in distance of an object = area under speed-time graph

Question 11

acceleration of a free fall

Answer 11

-9.81