Kinematics -Translation

Question 1

kinematics

Answer 1

describing the motion on bodies without considering forces causing the motion

Question 2

two forms of motion

Answer 2

translation and rotation

Question 3

what is translation

Answer 3

when then centre of mass is moving in space from one place to another

Question 4

what is rotation

Answer 4

the movement of the body around the centre of mass

Question 5

scalar

Answer 5

a magnitude (one value)

Question 6

vector

Answer 6

magnitude and direction

Question 7

distance example

Answer 7

200m sprint = 200m

Question 8

displacement example

Answer 8

200m sprint = 2 displacements along x and y axis and magnitude calculated as diagonal line across (square root of X2 + Y2)

Question 9

displacement

Answer 9

the change in position

Question 10

velocity

Answer 10

rate of change of position

Question 11

velocity equation

Answer 11

change in position (displacement) / change in time

Question 12

acceleration

Answer 12

rate of change of velocity

Question 13

acceleration equation

Answer 13

change in velocity / change in time

Question 14

v

Answer 14

final velocity

Question 15

u

Answer 15

initial velocity

Question 16

a

Answer 16

acceleration

Question 17

s

Answer 17

displacement

Question 18

t

Answer 18

change in time

Question 19

velocity at end (v) =

Answer 19

u+at

Question 20

4 equations for constant acceleration

Answer 20

v=u+at
v2=u2+2as
s=ut+1/2at2
s=1/2(u+v)t