2. Kinematics

Question 1

define and use distance, displacement, speed, velocity and acceleration

Answer 1

displacement- distance from a point in a straight line in a given direction.
velocity- change in displacement/time taken
acceleration- rate of change of velocity

Question 1

graphical methods to represent distance, displacement, speed, velocity and acceleration

Question 2

determine displacement from a velocity–time graph

Answer 2

area- always consider the direction for displacement so if velocity is in negative then subtract the area from the positive one- opposite signs don’t add the area under graph.

Question 3

determine velocity from a displacement–time graph

Answer 3

gradient

Question 4

determine acceleration from a velocity–time graph

Answer 4

gradient

Question 5

derive, from the definitions of velocity and acceleration, equations that represent uniformly accelerated
motion in a straight line

Answer 5

v=u+at
s=ut+1/2at^2
v^2=u^2+2as

condition- non-zero magnitude of acceleration is constant/uniform and in a straight line.

Question 6

solve problems using equations that represent uniformly accelerated motion in a straight line, including
the motion of bodies falling in a uniform gravitational field without air resistance

Question 7

describe an experiment to determine the acceleration of free fall using a falling object

Question 8

describe and explain motion due to a uniform velocity in one direction and a uniform acceleration in a
perpendicular direction