In this lesson we will describe the distribution of electromagnetic radiation that is emitted by all objects. We will also consider how the distribution changes depending on the temperature of an object.

Quiz:

# Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.What is the name of point F on the image?

1/6

Q2.What type of lens is shown the diagram?

2/6

Q3.What colour will an orange appear to be when placed under blue light?

3/6

Q4.Revision (HT only): When a light moves from air into glass (more optically dense), what will happen to its wavelength?

4/6

Q5.A wave travels at 24 m/s and has a wavelength of 12 m. What is its frequency?

5/6

Q6.Which of the following statements is false

6/6

Quiz:

# Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.What is the name of point F on the image?

1/6

Q2.What type of lens is shown the diagram?

2/6

Q3.What colour will an orange appear to be when placed under blue light?

3/6

Q4.Revision (HT only): When a light moves from air into glass (more optically dense), what will happen to its wavelength?

4/6

Q5.A wave travels at 24 m/s and has a wavelength of 12 m. What is its frequency?

5/6

Q6.Which of the following statements is false

6/6

# Video

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

• Click "Close Video"
• Click "Next" to view the activity

Your video will re-appear on the next page, and will stay paused in the right place.

# Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.

Quiz:

This quiz will test your understanding of the topic in the lesson, and prior knowledge from earlier in this topic.

Q1.Which three words can be used to describe the image?

Select three (3) boxes

1/5

Q2.Which word describes the process of giving out radiation?

2/5

Q3.Which is not a region of the electromagnetic spectrum?

3/5

Q4.What is a black body?

4/5

Q5.What will happen to the temperature of a body that absorbs infrared radiation at a higher rate than it emits?

5/5

Quiz:

This quiz will test your understanding of the topic in the lesson, and prior knowledge from earlier in this topic.

Q1.Which three words can be used to describe the image?

Select three (3) boxes

1/5

Q2.Which word describes the process of giving out radiation?

2/5

Q3.Which is not a region of the electromagnetic spectrum?

3/5

Q4.What is a black body?

4/5

Q5.What will happen to the temperature of a body that absorbs infrared radiation at a higher rate than it emits?

5/5

# Lesson summary: Black body radiation

## Time to move!

Did you know that exercise helps your concentration and ability to learn?

For 5 mins...

Move around:
Walk

On the spot:
Dance