Physics resources for IGCSE
or GCSE students.
Developed
by Conor Sheedy
[Science
home]
Revision sheets for IGCSE
or GCSE physics.
This series revision sheets are based on the IGCSE & GCSE
syllabuses.
Lots of formulas, definitions and key points to learn off.
There are also accompanying test sheets to check your
memorisation.
The idea is read the information
and than print the quiz sheet and try the questions.
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Revision
Exercise one:
Forces and Motion
unit of
Distance: m, "metre".
unit of
time: s, "second"
Speed
= Distance ÷ Time
Velocity
is speed in a certain direction.
Velocity =
Distance ÷ Time
unit of
Velocity: m/s, "metres per second"
Acceleration: a change in velocity.
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Acceleration = Change in Velocity ÷ Time.
a = (v-u) ÷
t
a = acceleration
v = final velocity
u = initial velocity
t = time
unit of
acceleration:  ,
"metres per second squared"
Distance is
the area under the velocity time graph.
Newtons
laws
1) Velocity
remains constant unless acted on by a resultant force
2) Force =
mass x acceleration
F = m x
a
3) If A
applies a force to B, B applies an equal but opposite force
on A
Unit of
force: N, "Newton" N=kg |
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Mass
(m) is an amount of substance. Unit kg "kilograms".
Gravity
is a force of attraction between masses.
The
acceleration due to gravity on earth (g) is aprox. 10 m/s2
Weight
(W) is the force of gravity pulling on a mass.
W = mg
Friction
is a force that opposes motion due to passing objects
rubbing off each other.
Density
= mass ÷ volume
 =
m ÷ v
Quiz for
revision exercise one:
Forces and motion
quiz
Further
information
About
ITS
“In
physics, you don't have to go around making trouble for yourself -
nature does it for you."
Frank Wilczek
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