# Reflection and refraction

Reflection and refraction
Light on the move.
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Slide 1: Slide
ScienceLower Secondary (Key Stage 3)

This lesson contains 17 slides, with interactive quizzes and text slides.

Lesson duration is: 25 min

## Items in this lesson

Reflection and refraction
Light on the move.

#### Slide 1 -Slide

Alter and label your reflection diagram from last lesson.

emits
eyes
luminous
reflects

#### Slide 3 -Drag question

We use a torch to make a ray of light
We use a ray box to make a ray of light
The normal is a real line
Angle of incidence = angle of reflection
Law of Reflection works on any kind of mirror
The Normal is 90 degrees to the surface a ray hits
Angle of Reflection>angle of incidence
TRUE
FALSE

#### Slide 4 -Drag question

Which of the following is an example of reflection?
A
Hearing an echo in a cave
B
Feeling the warmth of the sun
C
Seeing yourself in a mirror
D
Tasting a delicious meal

#### Slide 5 -Quiz

What type of wave undergoes reflection?
A
B
Light and sound waves
C
Heat waves
D
Electromagnetic waves

#### Slide 6 -Quiz

What law describes the angle of incidence being equal to the angle of reflection?
A
Snell's law
B
The law of reflection
C
Newton's law of motion
D
The law of refraction

#### Slide 7 -Quiz

What type of mirror has a flat, reflective surface?
A
Convex mirror
B
Dome mirror
C
Concave mirror
D
Plane mirror

.

#### Slide 9 -Slide

Which type of mirror causes light rays to converge to a focal point?
A
Plane mirror
B
Concave mirror
C
Dome mirror
D
Convex mirror

#### Slide 10 -Quiz

What type of mirror is designed with a panoramic view in mind?
A
Plane mirror
B
Concave mirror
C
Dome mirror
D
Convex mirror

#### Slide 11 -Quiz

What phenomenon is described by the bouncing back of light from a smooth surface?
A
Reflection
B
Absorption
C
Refraction
D
Diffraction

#### Slide 12 -Quiz

What is the phenomenon when a pencil appears bent in a glass of water?
A
Absorption
B
Dispersion
C
Reflection
D
Refraction

#### Slide 13 -Quiz

Which color of light bends the most during refraction?
A
Green
B
Yellow
C
Violet
D
Red

#### Slide 14 -Quiz

What is the angle of refraction?
A
The angle between the incident ray and the mirror.
B
The angle between the refracted ray and the surface.
C
The angle between the incident ray and the refracted ray.
D
The angle between the refracted ray and the normal.

#### Slide 15 -Quiz

Which of the following can cause refraction of light?
A
Passing through a vacuum.
B
Passing through a medium with a different optical density.
C
Reflection off a mirror.
D
Passing through a medium with the same optical density.

#### Slide 16 -Quiz

What is refraction?
A
The bending of light as it passes through different mediums.
B
The absorption of light by a surface.
C
The reflection of light off a smooth surface.
D
The dispersion of light into its component colors.