r/IGCSE
Resources
Topical Notes by Chapter for
Cambridge IGCSE
Physics (0625)
Authored by
Veda
1st edition, for examination until 2025
© r/IGCSE Resources 2024
,Chapter 1 : Motion, Forces And Energy
-
physical quantities and motion
measurement techniques speed is distance travelled per
&
W/O air resistance
Falling object
Rulers and measuring cylinders are for length and unit time object falls with same acceleration
,
volume Velocity is speed in a given direction speed of falling object increases at a steady
rate
total distance travelled
variety of clocks
measuring a time intervals
using Average speed =
total time taken
and timer Falling object with air resistance
digital Acceleration is change in velocity In uniform
gravitational field objects
sum of all values ,
Average Value :
number of values
per unit time a =A experience weight and friction
.
line= n The force of air resistance increases with
Period of oscillation- time taken/number of
↑
swings
steeper
speed.
higher speed of falling object .
decrease
decelerating
SCALAR increasing speed constan
speed
e -
.
initially the upward air resistance isn't high
·
quantities that
only have magnitude af rest
>
↳ accelerating
meaning there is unbalanced forces
time as air resistance increases
·
distance is also scalar as it has no direction time
,
·
Eg Speed time mass energy
:
and temperature
, , ,
,
· speed-gradient of distance-time Itenoughtobalancedownwardright
VECTORS accelerationgradient of speed-time of object forces are balanced
. · =
.
,
* distance travelled= area under the the
object now falls at constant
·
quantities that have both magnitude and direction speed-time graph speed
.
called Terminal Velocity
.
·
Velocity is also vector because it is ~
necessary to mention A deceleration is negative acceleration
and use this in calculations
both its speed and the direction .
·
Eg force weight
:
acceleration momentum electric field strength
Acceleration of free fall for
, , , ,
g
and gravitational field strength. near to the surface of
force of
an object
the resultant two vectors at right angles the earth is approximately constant
Calculation graphically draw and is approx constant and is
N N T on graph
find angle draw resultant
9 8 m/52
.
Pythagoras
using 5m/s2 Vector , measure length
4 resultant
52 + 52
SOH CAH TOA forces for force and use a
50 N
, ,
~= > protracter for
5 M/52
> angle
*-
density
&
mass and
weight S
volume
Mass :
a measure of the quantity of matter in an Density is mass per unit
object at rest relative to the observer
. = Where
p p
=
density
Weight a
gravitational force on an object that
:
m = mass
has mass . V-volume
weight is the effect of a gravitational field How to determine density in solids.
strength on mass .
Regular solid irregular solid
Gravitational field
*
Weight =
Mass x
strength.
. 9 Wm
W
W M
MG
= =
=
-
g width ,
· measure length ,
·
place object into a
measuring
Gravitational field strength is force per unit height 3 multiply to find Cup till it is submerged in
mass This is equivalent to acceleration of free
:
volgume water, the increase in water
fall
.
.
Place object on balance
·
volume is the volume.
(and mass) can be
Weights compared using to find its mass
. Place
·
object on a balance
balance
.
a * p =
M to find mass ·
p =
m
Which object floats ?
with density lower than that of liquid
any object a
will float above the liquid.
If liquid doesn't mix, does it float ?
lower density liquids float on denser liquids if not mixed .
-
, Chapter 1 : Motion, Forces And Energy
Resources
Topical Notes by Chapter for
Cambridge IGCSE
Physics (0625)
Authored by
Veda
1st edition, for examination until 2025
© r/IGCSE Resources 2024
,Chapter 1 : Motion, Forces And Energy
-
physical quantities and motion
measurement techniques speed is distance travelled per
&
W/O air resistance
Falling object
Rulers and measuring cylinders are for length and unit time object falls with same acceleration
,
volume Velocity is speed in a given direction speed of falling object increases at a steady
rate
total distance travelled
variety of clocks
measuring a time intervals
using Average speed =
total time taken
and timer Falling object with air resistance
digital Acceleration is change in velocity In uniform
gravitational field objects
sum of all values ,
Average Value :
number of values
per unit time a =A experience weight and friction
.
line= n The force of air resistance increases with
Period of oscillation- time taken/number of
↑
swings
steeper
speed.
higher speed of falling object .
decrease
decelerating
SCALAR increasing speed constan
speed
e -
.
initially the upward air resistance isn't high
·
quantities that
only have magnitude af rest
>
↳ accelerating
meaning there is unbalanced forces
time as air resistance increases
·
distance is also scalar as it has no direction time
,
·
Eg Speed time mass energy
:
and temperature
, , ,
,
· speed-gradient of distance-time Itenoughtobalancedownwardright
VECTORS accelerationgradient of speed-time of object forces are balanced
. · =
.
,
* distance travelled= area under the the
object now falls at constant
·
quantities that have both magnitude and direction speed-time graph speed
.
called Terminal Velocity
.
·
Velocity is also vector because it is ~
necessary to mention A deceleration is negative acceleration
and use this in calculations
both its speed and the direction .
·
Eg force weight
:
acceleration momentum electric field strength
Acceleration of free fall for
, , , ,
g
and gravitational field strength. near to the surface of
force of
an object
the resultant two vectors at right angles the earth is approximately constant
Calculation graphically draw and is approx constant and is
N N T on graph
find angle draw resultant
9 8 m/52
.
Pythagoras
using 5m/s2 Vector , measure length
4 resultant
52 + 52
SOH CAH TOA forces for force and use a
50 N
, ,
~= > protracter for
5 M/52
> angle
*-
density
&
mass and
weight S
volume
Mass :
a measure of the quantity of matter in an Density is mass per unit
object at rest relative to the observer
. = Where
p p
=
density
Weight a
gravitational force on an object that
:
m = mass
has mass . V-volume
weight is the effect of a gravitational field How to determine density in solids.
strength on mass .
Regular solid irregular solid
Gravitational field
*
Weight =
Mass x
strength.
. 9 Wm
W
W M
MG
= =
=
-
g width ,
· measure length ,
·
place object into a
measuring
Gravitational field strength is force per unit height 3 multiply to find Cup till it is submerged in
mass This is equivalent to acceleration of free
:
volgume water, the increase in water
fall
.
.
Place object on balance
·
volume is the volume.
(and mass) can be
Weights compared using to find its mass
. Place
·
object on a balance
balance
.
a * p =
M to find mass ·
p =
m
Which object floats ?
with density lower than that of liquid
any object a
will float above the liquid.
If liquid doesn't mix, does it float ?
lower density liquids float on denser liquids if not mixed .
-
, Chapter 1 : Motion, Forces And Energy
