Types of Electromagnetic Waves OALH

Do Now

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Draw a transverse wave with a high frequency.

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Draw a transverse wave with a low frequency.

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State the formula for calculating wave speed

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State the equipment needed for measuring the speed of a water wave.

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Calculate the gravitational potential energy of a 50 kg box held 15 metres above the Earth, which has a gravitational field strength of 9.8 N/kg.

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Calculate the frequency of a wave which is travelling at 12m/s with 1.5m between each crest.

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Explain why these statements are wrong:
•Matter moves with waves.
•Amplitude and frequency are related.
•Waves eventually just die out.

Checking for Understanding

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Name the wave found between microwaves and visible light on the electromagnetic spectrum

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Name the wave found between ultraviolet and gamma rays on the electromagnetic spectrum

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Which electromagnetic spectrum wave has the highest frequency?

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Which electromagnetic spectrum wave has the longest wavelength?

Key Knowledge

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Define spectrum.

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State the seven types of electromagnetic radiation in order from longest wavelength to shortest wavelength.

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State the speed of electromagnetic waves in a vacuum.

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Define spectrum.

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State the seven types of electromagnetic radiation in order from longest wavelength to shortest wavelength.

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State the speed of electromagnetic waves in a vacuum.

Recall Quiz

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1. Which of the following types of electromagnetic radiation has the lowest frequency?

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2. Which of the following types of electromagnetic radiation transfers the most energy?

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3. Which of the following types of electromagnetic radiation has the highest wavelength?

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4. Which of the following is NOT the speed of light in a vacuum?

Application Task - Please assume that, unless a speed is stated in the question, all electromagnetic waves have a velocity of 3 x108 m/s in air or a vacuum.

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We do: Radio waves have very long wavelengths, some as long as thousands of km. Like all electromagnetic radiation, radiowaves travel through the air at 300 000 000 m/s.

Calculate the frequency of a radio waves with a wavelength of 600 m. Give your answer in Hz and kHz

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1. a. Choose wavelengths from the list below to match the type of radiation.
3 x10–8 m Radio waves
1 x10–11 m Ultraviolet
5 x10–7 m X-rays
1500 m Visible Light

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2. Electromagnetic waves travel through space at a speed of 3.0 x108 m/s.
The radio waves emitted from a distant galaxy have a wavelength of 25 metres.

Calculate the frequency of the radio waves emitted from the galaxy and give the unit.

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3. Light waves with a frequency of 7.26 x1014 Hz lies in the violet region of the visible spectrum.
What is the wavelength of this frequency of light?

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4. When an electron beam strikes a block of copper, X-rays of frequency 1.07 x1019 Hz are emitted.
What is the wavelength of these X-rays?

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5. a. Calculate the wavelength of radiation emitted from radioactive cobalt with a frequency of 2.8 x1020 Hz.

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b. What region would this wave lie in on the electromagnetic spectrum?

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6. The wavelength of an argon laser output is 480 nm.
Calculate the frequency of the electromagnetic wave emitted. (2 marks)

Plenary

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Types of Electromagnetic Waves OALH

Draw a transverse wave with a high frequency.

Draw a transverse wave with a low frequency.

State the formula for calculating wave speed

State the equipment needed for measuring the speed of a water wave.

Calculate the gravitational potential energy of a 50 kg box held 15 metres above the Earth, which has a gravitational field strength of 9.8 N/kg.

Calculate the frequency of a wave which is travelling at 12m/s with 1.5m between each crest.

Explain why these statements are wrong:•Matter moves with waves.•Amplitude and frequency are related.•Waves eventually just die out.

Name the wave found between microwaves and visible light on the electromagnetic spectrum

Name the wave found between ultraviolet and gamma rays on the electromagnetic spectrum

Which electromagnetic spectrum wave has the highest frequency?

Which electromagnetic spectrum wave has the longest wavelength?

Define spectrum.

State the seven types of electromagnetic radiation in order from longest wavelength to shortest wavelength.

State the speed of electromagnetic waves in a vacuum.

Define spectrum.

State the seven types of electromagnetic radiation in order from longest wavelength to shortest wavelength.

State the speed of electromagnetic waves in a vacuum.

1. Which of the following types of electromagnetic radiation has the lowest frequency?

2. Which of the following types of electromagnetic radiation transfers the most energy?

3. Which of the following types of electromagnetic radiation has the highest wavelength?

4. Which of the following is NOT the speed of light in a vacuum?

We do: Radio waves have very long wavelengths, some as long as thousands of km. Like all electromagnetic radiation, radiowaves travel through the air at 300 000 000 m/s.Calculate the frequency of a radio waves with a wavelength of 600 m. Give your answer in Hz and kHz

1. a. Choose wavelengths from the list below to match the type of radiation.3 x10–8 m Radio waves1 x10–11 m Ultraviolet5 x10–7 m X-rays1500 m Visible Light

2. Electromagnetic waves travel through space at a speed of 3.0 x108 m/s.The radio waves emitted from a distant galaxy have a wavelength of 25 metres.Calculate the frequency of the radio waves emitted from the galaxy and give the unit.

3. Light waves with a frequency of 7.26 x1014 Hz lies in the violet region of the visible spectrum. What is the wavelength of this frequency of light?

4. When an electron beam strikes a block of copper, X-rays of frequency 1.07 x1019 Hz are emitted. What is the wavelength of these X-rays?

5. a. Calculate the wavelength of radiation emitted from radioactive cobalt with a frequency of 2.8 x1020 Hz.

b. What region would this wave lie in on the electromagnetic spectrum?

6. The wavelength of an argon laser output is 480 nm. Calculate the frequency of the electromagnetic wave emitted. (2 marks)

Write the seven types of electromagnetic radiation out in order from lowest frequency to highest frequency.

Draw a transverse wave with a high frequency.

Draw a transverse wave with a low frequency.

State the formula for calculating wave speed

State the equipment needed for measuring the speed of a water wave.

Calculate the gravitational potential energy of a 50 kg box held 15 metres above the Earth, which has a gravitational field strength of 9.8 N/kg.

Calculate the frequency of a wave which is travelling at 12m/s with 1.5m between each crest.

Explain why these statements are wrong:•Matter moves with waves.•Amplitude and frequency are related.•Waves eventually just die out.

Name the wave found between microwaves and visible light on the electromagnetic spectrum

Name the wave found between ultraviolet and gamma rays on the electromagnetic spectrum

Which electromagnetic spectrum wave has the highest frequency?

Which electromagnetic spectrum wave has the longest wavelength?

Define spectrum.

State the seven types of electromagnetic radiation in order from longest wavelength to shortest wavelength.

State the speed of electromagnetic waves in a vacuum.

Define spectrum.

State the seven types of electromagnetic radiation in order from longest wavelength to shortest wavelength.

State the speed of electromagnetic waves in a vacuum.

1. Which of the following types of electromagnetic radiation has the lowest frequency?

2. Which of the following types of electromagnetic radiation transfers the most energy?

3. Which of the following types of electromagnetic radiation has the highest wavelength?

4. Which of the following is NOT the speed of light in a vacuum?

We do: Radio waves have very long wavelengths, some as long as thousands of km. Like all electromagnetic radiation, radiowaves travel through the air at 300 000 000 m/s.Calculate the frequency of a radio waves with a wavelength of 600 m. Give your answer in Hz and kHz

1. a. Choose wavelengths from the list below to match the type of radiation.3 x10–8 m Radio waves1 x10–11 m Ultraviolet5 x10–7 m X-rays1500 m Visible Light

2. Electromagnetic waves travel through space at a speed of 3.0 x108 m/s.The radio waves emitted from a distant galaxy have a wavelength of 25 metres.Calculate the frequency of the radio waves emitted from the galaxy and give the unit.

3. Light waves with a frequency of 7.26 x1014 Hz lies in the violet region of the visible spectrum. What is the wavelength of this frequency of light?

4. When an electron beam strikes a block of copper, X-rays of frequency 1.07 x1019 Hz are emitted. What is the wavelength of these X-rays?

5. a. Calculate the wavelength of radiation emitted from radioactive cobalt with a frequency of 2.8 x1020 Hz.

b. What region would this wave lie in on the electromagnetic spectrum?

6. The wavelength of an argon laser output is 480 nm. Calculate the frequency of the electromagnetic wave emitted. (2 marks)

Write the seven types of electromagnetic radiation out in order from lowest frequency to highest frequency.

Explain why these statements are wrong:
•Matter moves with waves.
•Amplitude and frequency are related.
•Waves eventually just die out.

We do: Radio waves have very long wavelengths, some as long as thousands of km. Like all electromagnetic radiation, radiowaves travel through the air at 300 000 000 m/s.

Calculate the frequency of a radio waves with a wavelength of 600 m. Give your answer in Hz and kHz

1. a. Choose wavelengths from the list below to match the type of radiation.
3 x10–8 m Radio waves
1 x10–11 m Ultraviolet
5 x10–7 m X-rays
1500 m Visible Light

2. Electromagnetic waves travel through space at a speed of 3.0 x108 m/s.
The radio waves emitted from a distant galaxy have a wavelength of 25 metres.

Calculate the frequency of the radio waves emitted from the galaxy and give the unit.

3. Light waves with a frequency of 7.26 x1014 Hz lies in the violet region of the visible spectrum.
What is the wavelength of this frequency of light?

4. When an electron beam strikes a block of copper, X-rays of frequency 1.07 x1019 Hz are emitted.
What is the wavelength of these X-rays?

6. The wavelength of an argon laser output is 480 nm.
Calculate the frequency of the electromagnetic wave emitted. (2 marks)

Explain why these statements are wrong:
•Matter moves with waves.
•Amplitude and frequency are related.
•Waves eventually just die out.

We do: Radio waves have very long wavelengths, some as long as thousands of km. Like all electromagnetic radiation, radiowaves travel through the air at 300 000 000 m/s.

Calculate the frequency of a radio waves with a wavelength of 600 m. Give your answer in Hz and kHz

1. a. Choose wavelengths from the list below to match the type of radiation.
3 x10–8 m Radio waves
1 x10–11 m Ultraviolet
5 x10–7 m X-rays
1500 m Visible Light

2. Electromagnetic waves travel through space at a speed of 3.0 x108 m/s.
The radio waves emitted from a distant galaxy have a wavelength of 25 metres.

Calculate the frequency of the radio waves emitted from the galaxy and give the unit.

3. Light waves with a frequency of 7.26 x1014 Hz lies in the violet region of the visible spectrum.
What is the wavelength of this frequency of light?

4. When an electron beam strikes a block of copper, X-rays of frequency 1.07 x1019 Hz are emitted.
What is the wavelength of these X-rays?

6. The wavelength of an argon laser output is 480 nm.
Calculate the frequency of the electromagnetic wave emitted. (2 marks)