Waves and Electromagnetic Radiation

Waves

6 Topics | 5 Quizzes

1 | Mechanical Waves and Electromagnetic Waves

Mechanical Waves and Electromagnetic Waves – Topic Quiz

2 | Generation of Waves

Generation of Waves – Topic Quiz

3 | Types of Wave Motion

Types of Wave Motion – Topic Quiz

4 | Characterising and Graphing Wave Motion

Characterising and Graphing Wave Motion – Topic Quiz

5 | The Relationship Between Frequency, Wavelength and Velocity

The Relationship Between Frequency, Wavelength and Velocity – Topic Quiz

6 | Summary

Electromagnetic Radiation

11 Topics | 10 Quizzes

1 | Electromagnetic Waves

Electromagnetic Waves – Topic Quiz

2 | The Electromagnetic Spectrum

The Electromagnetic Spectrum – Topic Quiz

3 | Energy of Electromagnetic Radiation

Energy of Electromagnetic Radiation – Topic Quiz

4 | Radio Waves

Radio Waves – Topic Quiz

5 | Microwaves

Microwaves – Topic Quiz

6 | Infrared Radiation

Infrared Radiation – Topic Quiz

7 | Visible Light

Visible Light – Topic Quiz

8 | Ultraviolet Light

Ultraviolet Light – Topic Quiz

9 | X-Rays

X-Rays – Topic Quiz

10 | Gamma Rays

Gamma Rays – Topic Quiz

11 | Summary

Light, Sound and Heat

The Visible Light Spectrum and Colour

8 Topics | 7 Quizzes

1 | Light Waves

Light Waves – Topic Quiz

2 | The Visible Spectrum

The Visible Spectrum – Topic Quiz

3 | Transmission, Reflection and Absorption of Light

Transmission, Reflection and Absorption of Light – Topic Quiz

4 | Transparent, Translucent and Opaque Substances

Transparent, Translucent and Opaque Substances – Topic Quiz

5 | Colour

Colour – Topic Quiz

6 | Primary and Secondary Colours

Primary and Secondary Colours – Topic Quiz

7 | Polarisation of Light

Polarisation of Light – Topic Quiz

8 | Summary

Reflection and Mirrors

6 Topics | 5 Quizzes

1 | Mirrors

Mirrors – Topic Quiz

2 | The Law of Reflection

The Law of Reflection – Topic Quiz

3 | Mirrors and Reflection of Light

Mirrors and Reflection of Light – Topic Quiz

4 | Concepts Relating to Curved Mirrors

Concepts Relating to Curved Mirrors – Topic Quiz

5 | Mirrors and Image Formation

Mirrors and Image Formation – Topic Quiz

6 | Summary

Refraction and Lenses

7 Topics | 6 Quizzes

1 | Refraction

Refraction – Topic Quiz

2 | The Refractive Index and Law of Refraction

The Refractive Index and Law of Refraction – Topic Quiz

3 | Lenses and Refraction of Light

Lenses and Refraction of Light – Topic Quiz

4 | Symmetrical Lenses

Symmetrical Lenses – Topic Quiz

5 | Lenses and Image Formation

Lenses and Image Formation – Topic Quiz

6 | Lenses in the Eye

Lenses in the Eye – Topic Quiz

7 | Summary

Sound Waves

9 Topics | 8 Quizzes

1 | Properties of Sound Waves

Properties of Sound Waves – Topic Quiz

2 | Representing Sound Waves Graphically

Representing Sound Waves Graphically – Topic Quiz

3 | Frequency, Wavelength and Velocity

Frequency, Wavelength and Velocity – Topic Quiz

4 | Speed of Sound

Speed of Sound – Topic Quiz

5 | Pitch and Loudness

Pitch and Loudness – Topic Quiz

6 | The Decibel Scale

The Decibel Scale – Topic Quiz

7 | Perception of Sound

Perception of Sound – Topic Quiz

8 | Transmission, Reflection and Absorption of Sound

Transmission, Reflection and Absorption of Sound – Topic Quiz

9 | Summary

Heat Energy and Heat Transfer

6 Topics | 5 Quizzes

1 | Kinetic Energy, Heat Energy and Temperature

Kinetic Energy, Heat Energy and Temperature – Topic Quiz

2 | Heat Transfer

Heat Transfer – Topic Quiz

3 | Conduction

Conduction – Topic Quiz

4 | Convection

Convection – Topic Quiz

5 | Radiation

Radiation – Topic Quiz

6 | Summary

Electricity

Introduction to Electricity

5 Topics | 4 Quizzes

1 | Electric Charge

Electric Charge – Topic Quiz

2 | Electricity

Electricity – Topic Quiz

3 | Static Electricity

Static Electricity – Topic Quiz

4 | Current Electricity

Current Electricity – Topic Quiz

5 | Summary

Electric Circuits and Circuit Diagrams

4 Topics | 3 Quizzes

1 | Electric Circuits

Electric Circuits – Topic Quiz

2 | Circuit Diagrams

Circuit Diagrams – Topic Quiz

3 | Series Circuits and Parallel Circuits

Series Circuits and Parallel Circuits – Topic Quiz

4 | Summary

Measuring Electricity – Voltage and Current

8 Topics | 7 Quizzes

1 | Measuring Electricity

Measuring Electricity – Topic Quiz

4 | Electricity Supply in Australia

Electricity Supply in Australia – Topic Quiz

5 | Transformers

Transformers – Topic Quiz

6 | Voltage and Current in Series and Parallel Circuits

Voltage and Current in Series and Parallel Circuits – Topic Quiz

7 | Comparing Parallel and Series Circuits with Multiple Light Bulbs

Comparing Parallel and Series Circuits with Multiple Light Bulbs – Topic Quiz

8 | Summary

Electrical Resistance and Ohm’s Law

7 Topics | 6 Quizzes

1 | Electrical Resistance

Electrical Resistance – Topic Quiz

2 | Conductors and Insulators

Conductors and Insulators – Topic Quiz

3 | Factors Affecting Resistance of a Wire

Factors Affecting Resistance of a Wire – Topic Quiz

4 | Resistors

Resistors – Topic Quiz

5 | Calculating Total Resistance in a Circuit

Calculating Total Resistance in a Circuit – Topic Quiz

6 | Ohm’s Law

Ohm’s Law – Topic Quiz

7 | Summary

Using Energy

Energy-Efficient Design

5 Topics | 4 Quizzes

1 | Energy Efficiency

Energy Efficiency – Topic Quiz

2 | Increasing Mechanical Efficiency By Reducing Friction

Increasing Mechanical Efficiency By Reducing Friction – Topic Quiz

3 | Increasing Thermal Efficiency By Reducing Heat Transfer

Increasing Thermal Efficiency By Reducing Heat Transfer – Topic Quiz

4 | Other Examples of Increasing Energy Efficiency

Other Examples of Increasing Energy Efficiency – Topic Quiz

5 | Summary

Energy Consumption and Clean Energy

6 Topics | 5 Quizzes

1 | Reducing Energy Consumption and Using Cleaner Sources of Energy

Reducing Energy Consumption and Using Cleaner Sources of Energy – Topic Quiz

2 | Ways of Reducing Energy Usage Around the Home

Ways of Reducing Energy Usage Around the Home – Topic Quiz

3 | Other Ways of Reducing Energy Use

Other Ways of Reducing Energy Use – Topic Quiz

4 | Fossil Fuels as a Source of Energy

Fossil Fuels as a Source of Energy – Topic Quiz

5 | Alternative Sources of Energy

Alternative Sources of Energy – Topic Quiz

6 | Summary

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5 | The Relationship Between Frequency, Wavelength and Velocity

Year 9 Physics Online Course 9.0 Waves 5 | The Relationship Between Frequency, Wavelength and Velocity

Frequency, Wavelength and Velocity

The frequency, wavelength and velocity of a wave are mathematically related, as shown in the following variations of the wave formula.

In terms of frequency:

In terms of wavelength:

In terms of velocity:

The velocity of a wave is constant for a given medium. Therefore, frequency and wavelength are inversely proportional.

This means that:

The higher the frequency, the shorter the wavelength.

The lower the frequency, the longer the wavelength.

The amplitude of a wave does not affect its frequency, wavelength or velocity.

The frequency, wavelength and velocity of a wave are mathematically related.

Quizzes

The Relationship Between Frequency, Wavelength and Velocity – Topic Quiz

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