1. Physics and SI Units

2. What is physics?
Slide 2

3. Physics Mechanics: motion and its causes, interaction between objects
Thermodynamics: heat and temperature
Vibrations and waves: specific types of repetitive motion
Optics: light
Electromagnetism: electricity, magnetism and light
Relativity: things moving at speeds close to the speed of light
Quantum physics: behaviour of submicroscopic particles

4. The scientific method

5. Mathematics Check
Can you do the following?

6. Le Système international d'unités
In English it’s called International System of Units
There are 7 SI base units and each one describes a different dimension:
The ones we will meet most are
Kilogram (kg), metre (m) , second (s), Kelvin (K), Amperes (Amps / A)

7. Derived SI units
Derived SI units are units which are made up of the base units
An example is the Newton
Using F=ma (derived from Newton’s 2nd law)
1N = 1kgms-2

8. Homework Read section 1 of your textbook p 4-9
Try to answer the questions but I won’t be accepting them in

9. Questions