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Lesson 1 Physical Quantities+UnitsMotion: What Physical Quantites are and what units go with them.Using Numerical Prefixes. 

Lesson 2  Vectors and ScalarsMotion: What Vectors and Scalars are and examples of them. 

Lesson 3  Vector AdditionMotion: Adding Vectors in 2 dimensions and using Pythagoras' Theorem to find the size of the resultant. 

Lesson 4  Components of a vectorMotion: Finding the components of a resultant vector by using trigonometry. 

Lesson 5  Gatso Speed CamerasMotion: HOW SCIENCE WORKS.How GATSO Speed cameras work. 

Lesson 6Displacement Time GraphsMotion: Defining displacement and using displacementtime graphs to describe motion. 

Lesson 7  Velocity Time GraphsMotion: Defining velocity and using velocitytime graphs to describe motion. 

Lesson 8  Motion Graphs ReviewMotion: Using displacementtime and velocitytime graphs to find velocity, acceleration and displacement. 

Lesson 9  Uniform AccelerationMotion: Deriving the equations of motion (suvat equations) and using them. 

Lesson 10  Motion under GravityMotion: Practical use of the equations of motion. Describing an experiment to find acceleration due to gravity. 

Lesson 11  Projectiles introMotion: What a projectile is and what path one follows. 

Lesson 12  Projectiles challengeMotion: Applying the equations of motion to projectile motion. 

Lesson 13  Projectiles PractiseMotion: Applying the equations of motion to projectile motion. 

Lesson 14  G481.1 Module ReviewMotion: Test yourself on Motion. 

Lesson 15  Newton's 2nd LawForces in action: Using Newton's 2nd Law and defining the Newton. 

Lesson 16  Newton 2 practiseForces in action: Questions using Newton's 2nd Law. 

Lesson 17  NonLinear MotionForces in action: Describing the motion of projectiles travelling in a fluid. 

Lesson 18  Equilibrium DefinitionsForces in action: Describing equilibrium and using the triangle of forces. 

Lesson 19  Moments and CouplesForces in action: Describing moments and couples. 

Lesson 20  Equilibrium ExamplesForces in action: Using the principle of moments to do questions involving practical situations. 

Lesson 21  Density and PressureForces in action: Describing density and pressure and their units. 

Lesson 22  Forces on VehiclesForces in action: Describing the factors that affect stopping distance. 

Lesson 23Physics of vehicles introForces in action: Describing how air bags, seat belts and crumple zones work and looking at how GPS works. 

Lesson 24  Physics of vehiclesForces in action: Describing how forces are reduced by using air bags, seat belts and crumple zones. 

Lesson 25  G481.2 ReviewForces in action: Test yourself on Forces in action. 

Lesson 26  Work and energyWork and Energy: Defining work done and the Joule and using the equation. 

Lesson 27  Energy ChangesWork and Energy: Defining the conservation of energy and describing some examples. 

Lesson 28  GPE to KEWork and Energy: Describing the interchange between gravitational potential energy and kinetic energy using equations. 

Lesson 29  PowerWork and Energy: Describing power and the Watt. 

Lesson 30  EfficiencyWork and Energy: Describing energy efficiency. 

Lesson 31  Spring ConstantWork and Energy: Looking at elastic materials and using Hooke's Law. 

Lesson 32  Strain EnergyWork and Energy: Describing the energy stored in elastic materials. 

Lesson 33  Young ModulusWork and Energy: Describing Stress and Strain of materials, the definition of the Young Modulus and describing experiments to find it. 

Lesson 34  Material PropertiesWork and Energy: Defining the terms elastic deformation and plastic deformation of a material. Looking at stress strain graphs for ductile, brittle and polymeric materials. 

Lesson 35  G481 ReviewWork and Energy: Test yourself on Work and Energy. 
pico (p), nano (n), micro(µ), milli (m), centi (c), kilo (k), mega (M), giga (G), tera (T); Mass (kg); Length (m); Volume (L); Time (s); Electric Current (A); Temperature (K); Intensity of light (Cd); amount of a substance (mol)
You should:
(a) be able to explain that some physical quantities consist of a numerical magnitude and a unit;
(b) be able to use the correct unit for its physical quantity;
(c) know how the prefixes and their symbols indicate decimal submultiples or multiples of units;
(d) be able to make suitable estimates of physical quantities.
After watching the IB video at the top of the page about physical quantities, units and vectors, try this matching game to see where your starting point is:
Click here to see the starter full screen.
Read through these notes on Physical quantities, their units and numerical prefixes.
In 1960, the Eleventh General Conference on Weights and Measures was held in Paris. They adopted a universal system of measurement units called Le Systeme International d'Unites (French), which is a revised version of the metric system. This International System, or SI, is used for around the world.
There are seven SI base units. Everything that is measurable, can be measured by these base units, or by units derived from these bases. The table below shows the bases, their international symbols, and what they are used to measure.
Quantity 
Unit 
Abbreviation 
Mass 
kilograms 
kg 
Length 
meters 
m 
Time 
seconds 
s 
Electric Current 
ampere 
A 
Temperature 
Kelvin, Celsius 
K,C 
Intensity of light 
candela 
cd 
amount of a substance 
mole 
mol 
The following table shows the numerical prefixes that with the ones you must know shaded in.
Factor 
Name 
Symbol 
10^{24} 
yotta 
Y 
10^{21} 
zetta 
Z 
10^{18} 
exa 
E 
10^{15} 
peta 
P 
10^{12} 
tera 
T 
10^{9} 
giga 
G 
10^{6} 
mega 
M 
10^{3} 
kilo 
k 
10^{2} 
hecto 
h 
10^{1} 
deka 
da 
10^{1} 
deci 
d 
10^{2} 
centi 
c 
10^{3} 
milli 
m 
10^{6} 
micro 
µ 
10^{9} 
nano 
n 
10^{12} 
pico 
p 
10^{15} 
femto 
f 
10^{18} 
atto 
a 
10^{21} 
zepto 
z 
10^{24} 
yocto 
y 
For a printable version of these notes click here.
Copy both tables into your notes and then do the worksheet below.
Print out the worksheet and then check your answersHave a go at these review exercises.
You may need to use a calculator to help you.
These exercises are from an american website (so some of the spellings may be wrong) but check that you can do each one before doing the crossword underneath.
If you would rather look at this site in a separate window, then follow the link: questions (http://www.fordhamprep.org/gcurran/sho/sho/review/rev21b.htm)
This Crossword is from the same place. To see the clues click on the Numbers at the beginning of each row or column and then type in your answers.
If you would rather look at this site in a separate window, then follow the link: crossword (http://www.fordhamprep.org/gcurran/sho/sho/review/rev21d.htm)
You should check through these outcomes. If there is anything you can't do, check through the page again before you do your homework.
(a) You can now explain that physical quantities consist of a size and a unit;
(b) You can use the correct unit for its physical quantity;
(c) You know how the prefixes and their symbols indicate the different multiples of units; e.g. MPa means Mega Pascals which means millions of Pascals.
(d) You are able to make suitable estimates of physical quantities. This idea will be developed throughout the course.