What are some uses of light?

In this lesson, we will learn some of the different uses of light. First, we will look at what a periscope is and how it works. Then, we will learn about the different kinds of lenses that help people to see. To finish our lesson, we will learn about shadow puppet theatres and make our own!

What are some uses of light?

In this lesson, we will learn some of the different uses of light. First, we will look at what a periscope is and how it works. Then, we will learn about the different kinds of lenses that help people to see. To finish our lesson, we will learn about shadow puppet theatres and make our own!

Lesson details

Key learning points

  1. Build a shadow puppet theatre
  2. How a periscope works
  3. How different types of lenses work

Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

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5 Questions

Q1.
What is reflection?
An object that emits light
The absence of light
Correct answer: When light bounces off an object
Q2.
What is refraction?
Correct answer: When a light wave changes direction as it moves from one transparent material to another.
When an opaque object blocks light and creates a dark patch.
When the angle of incidence and reflection are equal.
Q3.
What is happening at label A?
Reflection
Correct answer: Refraction
Q4.
What is happening at label B?
Correct answer: Reflection
Refraction
Q5.
What is happening at label C?
Reflection
Correct answer: Refraction

5 Questions

Q1.
What is reflection?
An object that emits light
The absence of light
Correct answer: When light bounces off an object
Q2.
What is refraction?
Correct answer: When a light wave changes direction as it moves from one transparent material to another.
When an opaque object blocks light and creates a dark patch.
When the angle of incidence and reflection are equal.
Q3.
Is lens A or B concave?
Lens A
Correct answer: Lens B
Q4.
What is happening at the mirrors marked a on the periscope?
Correct answer: Reflection
Refraction
Q5.
What can you do to make a shadow bigger?
Correct answer: Move it closer to the light source
Move it further away from the light source

Lesson appears in

UnitScience / Light

Science