Physics 7–9

1. Introduction

Kirjanmerkki	Luku
1.1.	Introduction

2. Wave motion

Kirjanmerkki	Luku
2.1.	Oscillation Tutustu ilmaiseksi!
2.2.	Sound waves
2.3.	Light travels in a straight line
2.4.	Mirrors reflect light
2.5.	Refraction
2.6.	Lenses refract light

3. Stars, space and the universe

Kirjanmerkki	Luku
3.1.	The universe is expanding
3.2.	The solar system
3.3.	The Earth and Moon system
3.4.	Solar wind and eclipses
3.5.	Radioactive radiation

4. Thermodynamics

Kirjanmerkki	Luku
4.1.	Thermal energy
4.2.	Changes of state
4.3.	Thermal expansion
4.4.	Thermal energy transfer

5. Mechanics

Kirjanmerkki	Luku
5.1.	Interaction
5.2.	Interaction as a cause of changes in motion
5.3.	Why does an object tip over?
5.4.	Forces that oppose motion
5.5.	Position and velocity
5.6.	Uniform motion
5.7.	Acceleration
5.8.	Pressure
5.9.	Buoyancy
5.10.	Energy and motion
5.11.	Simple machines

6. Direct current

Kirjanmerkki	Luku
6.1.	Electric current and electrical devices
6.2.	Voltage
6.3.	Resistance
6.4.	Static electricity
6.5.	Electricity and energy

7. Electromagnetism

Kirjanmerkki	Luku
7.1.	Magnetism
7.2.	Electromagnets
7.3.	Generators
7.4.	Electrical components
7.5.	Electromagnetic radiation and communications
7.6.	Different sources of electrical energy
7.7.	From power plants to home connections
7.8.	Future challenges in the use and production of electricity

8. Extras

Kirjanmerkki	Luku
8.1.	Charts
8.2.	For the teacher