,
,
, I
·
Distance-time Shows how distance varies over time
graphs
speed gradient
= :
Rise
run
Straight line-constant speed
curved line-acceleration/deceleration
m
~
Average
·
stance moved
&
speed average Speed- time taken
↑ m/s &s
is
Acceleration
acceleration : I
undeinspeed
·
[m/s
a
=
, ↑
Velocity time shows how velocity varies over time
·
·
-
graphs
=
Trise
run
acceleration =
gradient :
rise
The area under a velocity-time graph
represents displacement
,
,
, I
↑
Effects of A force is a push or pull that changes :
forces &
Speed
·
shape
·
direction
Types of
forces reaction force
·
↑
Iforce of gravity
Vector Scalar
Scalar-quantity with
only magnitude
·
vs
Vector-magnitude and direction
, p
length of arrow-magnitude of force
·
Forces as direction of arrow direction of force
=
vectors
·
Resultant Add vectors end-to-end
forces
↑ a
GON
+
son 1
·
friction -
The force that opposes the motion of an
object
Emerges when surfaces rub together
·
·
Unbalanced - When there is a resultant force on an
forces object
·
This causes it to accelerate
m/s
N +
Sorce = max acceleration ~
F=
ma