WAVES

Light Waves

Module L Unit 2 Lesson 3

Lesson Title

Class Rules

Reminders

Standards and

Objective

Vocabulary

Daily Routine

Starter
(Engage)

Topic 1

(Explore/ Explain)

Topic 2

(Explore/ Explain)

Topic 3

(Explore/ Explain)

UAE/ real-life
Connection
(Elaborate)

Plenary

(Evaluate)

Exit Ticket

Use your laptops when you

are allowed only

Be ready to learn

Be respectful to others

E-safety rules

Class rules

Lesson Title

Class Rules

Reminders

Standards and

Objective

Vocabulary

Daily Routine

Starter
(Engage)

Topic 1

(Explore/ Explain)

Topic 2

(Explore/ Explain)

Topic 3

(Explore/ Explain)

UAE/ real-life
Connection
(Elaborate)

Plenary

(Evaluate)

Exit Ticket

Standards and Objectives

Standards:

•MS-PS4-1. Use mathematical representations to describe a simple model for waves that includes how

the amplitude of a wave is related to the energy in a wave.

•MS-PS4-2. Develop and use a model to describe that waves are reflected, absorbed, or transmitted

through various materials

Objectives:

•Gather evidence on the unique properties of light waves and how this contributes to the way humans

perceive color and brightness

Lesson Title

Class Rules

Reminders

Standards and

Objective

Vocabulary

Daily Routine

Starter
(Engage)

Topic 1

(Explore/ Explain)

Topic 2

(Explore/ Explain)

Topic 3

(Explore/ Explain)

UAE/ real-life
Connection
(Elaborate)

Plenary

(Evaluate)

Exit Ticket

Starter

Lesson Title

Class Rules

Reminders

Standards and

Objective

Vocabulary

Daily Routine

Starter
(Engage)

Topic 1

(Explore/ Explain)

Topic 2

(Explore/ Explain)

Topic 3

(Explore/ Explain)

UAE/ real-life
Connection
(Elaborate)

Plenary

(Evaluate)

Exit Ticket

How did that sunlight reach us all

the way here on Earth?

Word Cloud

How did that sunlight reach us all the way here on Earth?

Exploring the nature of the light

Lesson Title

Class Rules

Reminders

Standards and

Objective

Vocabulary

Daily Routine

Starter
(Engage)

Topic 1

(Explore/ Explain)

Topic 2

(Explore/ Explain)

Topic 3

(Explore/ Explain)

UAE/ real-life
Connection
(Elaborate)

Plenary

(Evaluate)

Exit Ticket

Watch the following video to complete the worksheet

Exploring the nature of the light

Lesson Title

Class Rules

Reminders

Standards and

Objective

Vocabulary

Daily Routine

Starter
(Engage)

Topic 1

(Explore/ Explain)

Topic 2

(Explore/ Explain)

Topic 3

(Explore/ Explain)

UAE/ real-life
Connection
(Elaborate)

Plenary

(Evaluate)

Exit Ticket

Light: is a type of energy that travels as waves.

Examples of sources of light:

Light Bulbs

Fire & Candles

Sun & stars

Fireflies

Some fish

The most important
source of light for life

on Earth

Light waves:

1. Do not require medium (matter) to travel.

2. Are electromagnetic wave

https://edpuzzle.com/media/65b7d067778728cff1ac6d88

Exploring the nature of the light

Lesson Title

Class Rules

Reminders

Standards and

Objective

Vocabulary

Daily Routine

Starter
(Engage)

Topic 1

(Explore/ Explain)

Topic 2

(Explore/ Explain)

Topic 3

(Explore/ Explain)

UAE/ real-life
Connection
(Elaborate)

Plenary

(Evaluate)

Exit Ticket

Watch the video to fill in the blanks:

Name: ___________________________ Grade: 8/____

•Light is a type of _________ that we can see.

•___________, ___________, and ____________are all sources of light.

•Some animals like _____________ and some types of ____________ can

make light.

•The most important source of light for life on Earth is the __________.

•Moon (does / doesn’t) create its own light. It ____________ light from the

sun.

Exploring the nature of the light

Lesson Title

Class Rules

Reminders

Standards and

Objective

Vocabulary

Daily Routine

Starter
(Engage)

Topic 1

(Explore/ Explain)

Topic 2

(Explore/ Explain)

Topic 3

(Explore/ Explain)

UAE/ real-life
Connection
(Elaborate)

Plenary

(Evaluate)

Exit Ticket

Wave: is a disturbance that transfers energy from one place to another.

Compare the two waves. How are the two waves similar? How are they different?

Group Work

Similarities: both are transverse wave.

Differences: EM wave has two waves traveling at the same time and in the same direction perpendicular to

each other. While mechanical wave has only one wave.

Exploring the nature of the light

Lesson Title

Class Rules

Reminders

Standards and

Objective

Vocabulary

Daily Routine

Starter
(Engage)

Topic 1

(Explore/ Explain)

Topic 2

(Explore/ Explain)

Topic 3

(Explore/ Explain)

UAE/ real-life
Connection
(Elaborate)

Plenary

(Evaluate)

Exit Ticket

Electromagnetic (EM)

•The source of electromagnetic waves is a vibrating charged particle

•The fields are perpendicular to each other

•EM waves do not need a medium in which to travel.

Exploring the nature of the light

Lesson Title

Class Rules

Reminders

Standards and

Objective

Vocabulary

Daily Routine

Starter
(Engage)

Topic 1

(Explore/ Explain)

Topic 2

(Explore/ Explain)

Topic 3

(Explore/ Explain)

UAE/ real-life
Connection
(Elaborate)

Plenary

(Evaluate)

Exit Ticket

Light that we can see is called visible light, and its part of larger range of waves known as

the electromagnetic (EM) spectrum

Electromagnetic Spectrum (kcvs.ca)

Exploring the nature of the light

Lesson Title

Class Rules

Reminders

Standards and

Objective

Vocabulary

Daily Routine

Starter
(Engage)

Topic 1

(Explore/ Explain)

Topic 2

(Explore/ Explain)

Topic 3

(Explore/ Explain)

UAE/ real-life
Connection
(Elaborate)

Plenary

(Evaluate)

Exit Ticket

The Andromeda Galaxy in
different wavelengths

The sun in different

wavelengths

Multiple Choice

What is a wave?

• Something from a Radio

• Something you can surf on.

• Disturbance in atmosphere.

• Wave of an ocean.

Multiple Choice

What is a medium?

• Something some waves need to travel through

• Size of wave

• type of size

• Matter with a bunch of atoms in it

Multiple Choice

What are waves?

• Repeating pattern of motion that transfers energy

• The thing that you surf on

Multiple Choice

what type of wave is shown in the diagram?

• Transverse wave. The disturbance is perpendicular to the direction the wave travels.

• Transverse wave. The disturbance is parallel to the direction the wave travels.

• Longitudinal wave. The disturbance is perpendicular to the direction the wave travels.

• Longitudinal wave. The disturbance is parallel to the direction the wave travels.

Exploring the nature of the light

Lesson Title

Class Rules

Reminders

Standards and

Objective

Vocabulary

Daily Routine

Starter
(Engage)

Topic 1

(Explore/ Explain)

Topic 2

(Explore/ Explain)

Topic 3

(Explore/ Explain)

UAE/ real-life
Connection
(Elaborate)

Plenary

(Evaluate)

Exit Ticket

Animals can see things differentially than you do!

https://wordwall.net/resource/23418498

Multiple Choice

Which of the following is an example if longitudinal waves?

• electromagnetic waves

• sound waves

• water waves

• light waves

Exploring the nature of the light

Lesson Title

Class Rules

Reminders

Standards and

Objective

Vocabulary

Daily Routine

Starter
(Engage)

Topic 1

(Explore/ Explain)

Topic 2

(Explore/ Explain)

Topic 3

(Explore/ Explain)

UAE/ real-life
Connection
(Elaborate)

Plenary

(Evaluate)

Exit Ticket

•How many waves are shown in the diagram?

o 3 waves

Parts of a wave:

Exploring the nature of the light

Lesson Title

Class Rules

Reminders

Standards and

Objective

Vocabulary

Daily Routine

Starter
(Engage)

Topic 1

(Explore/ Explain)

Topic 2

(Explore/ Explain)

Topic 3

(Explore/ Explain)

UAE/ real-life
Connection
(Elaborate)

Plenary

(Evaluate)

Exit Ticket

Which wave has higher frequency?

Which wave has longer wavelength?

What is the unit of frequency?

Hz (1 Hz = 1 cycle per second)

Exploring the nature of the light

Lesson Title

Class Rules

Reminders

Standards and

Objective

Vocabulary

Daily Routine

Starter
(Engage)

Topic 1

(Explore/ Explain)

Topic 2

(Explore/ Explain)

Topic 3

(Explore/ Explain)

UAE/ real-life
Connection
(Elaborate)

Plenary

(Evaluate)

Exit Ticket

Which wave has higher amplitude?

Which wave has higher energy?

Exploring the nature of the light

Lesson Title

Class Rules

Reminders

Standards and

Objective

Vocabulary

Daily Routine

Starter
(Engage)

Topic 1

(Explore/ Explain)

Topic 2

(Explore/ Explain)

Topic 3

(Explore/ Explain)

UAE/ real-life
Connection
(Elaborate)

Plenary

(Evaluate)

Exit Ticket

Exploring the nature of the light

Lesson Title

Class Rules

Reminders

Standards and

Objective

Vocabulary

Daily Routine

Starter
(Engage)

Topic 1

(Explore/ Explain)

Topic 2

(Explore/ Explain)

Topic 3

(Explore/ Explain)

UAE/ real-life
Connection
(Elaborate)

Plenary

(Evaluate)

Exit Ticket

The electromagnetic spectrum:

https://wordwall.net/resource/9602779/electromagnatic-waves

Exploring the nature of the light

Lesson Title

Class Rules

Reminders

Standards and

Objective

Vocabulary

Daily Routine

Starter
(Engage)

Topic 1

(Explore/ Explain)

Topic 2

(Explore/ Explain)

Topic 3

(Explore/ Explain)

UAE/ real-life
Connection
(Elaborate)

Plenary

(Evaluate)

Exit Ticket

Use the words in the box to fill in the blanks:

Frequency – wavelength - energy

Exploring the nature of the light

Lesson Title

Class Rules

Reminders

Standards and

Objective

Vocabulary

Daily Routine

Starter
(Engage)

Topic 1

(Explore/ Explain)

Topic 2

(Explore/ Explain)

Topic 3

(Explore/ Explain)

UAE/ real-life
Connection
(Elaborate)

Plenary

(Evaluate)

Exit Ticket

Wavelength

Frequency

Energy

Wavelength

Frequency

Energy

The more energy EM waves have, the more dangerous they can be to living tissue.

Examples:

X-ray (high frequency and energy):

When working with x-rays, people must

wear a lead apron to block the rays.

Radio waves (low frequency and energy):

They are safe and can be used in

electronic

Exploring the nature of the light

Lesson Title

Class Rules

Reminders

Standards and

Objective

Vocabulary

Daily Routine

Starter
(Engage)

Topic 1

(Explore/ Explain)

Topic 2

(Explore/ Explain)

Topic 3

(Explore/ Explain)

UAE/ real-life
Connection
(Elaborate)

Plenary

(Evaluate)

Exit Ticket

•The color __________ has the longest wavelength and lowest frequency.

•The color __________ has the shortest wavelength and highest frequency.

red

violet

Study the image and fill in the blanks:

Answer the following question:

Radio waves have a frequency of about 3 × 10¹¹ Hz. How many radio waves pass a
point in one minute?

3 × 1011 𝑤𝑎𝑣𝑒

𝑠𝑒𝑐 × 60 𝑠𝑒𝑐

𝑚𝑖𝑛= 180 𝑤𝑎𝑣𝑒/𝑚𝑖𝑛

𝑅𝑒𝑚𝑒𝑏𝑒𝑟: 𝐻𝑧 = 𝑤𝑎𝑣𝑒 /𝑠𝑒𝑐

Energy and Frequency

Lesson Title

Class Rules

Reminders

Standards and

Objective

Vocabulary

Daily Routine

Starter
(Engage)

Topic 1

(Explore/ Explain)

Topic 2

(Explore/ Explain)

Topic 3

(Explore/ Explain)

UAE/ real-life
Connection
(Elaborate)

Plenary

(Evaluate)

Exit Ticket

Use the image to answer the question:

Why would astronomers want to put a telescope in space?

Because the Earth’s atmosphere absorbs some types of electromagnetic

radiation. So, telescopes in space can collect energy at all wavelengths.

Word Cloud

Why would astronomers want to put a telescope in space?

Energy and Frequency

Lesson Title

Class Rules

Reminders

Standards and

Objective

Vocabulary

Daily Routine

Starter
(Engage)

Topic 1

(Explore/ Explain)

Topic 2

(Explore/ Explain)

Topic 3

(Explore/ Explain)

UAE/ real-life
Connection
(Elaborate)

Plenary

(Evaluate)

Exit Ticket

Small amounts of UV light

Large amounts of UV light

Skin cells produce Vitamin D

helps our body absorb calcium

helps to produce strong teeth & bone

Sunburns, eye damage, and skin cancer

How can you protect yourself?

Using sunscreen & wearing protective

clothes

Energy and Frequency

Lesson Title

Class Rules

Reminders

Standards and

Objective

Vocabulary

Daily Routine

Starter
(Engage)

Topic 1

(Explore/ Explain)

Topic 2

(Explore/ Explain)

Topic 3

(Explore/ Explain)

UAE/ real-life
Connection
(Elaborate)

Plenary

(Evaluate)

Exit Ticket

Complete the worksheet on your own, and then exchange it with another

student to review.

Word Cloud

Examine the role of light in traditional Emirati art forms, such as pottery, textiles, or calligraphy. How have artists adapted their techniques and materials to account for varying brightness levels and the unique light conditions in the UAE?

Multiple Choice

The distance between one point of a wave to the same point on the next wave.

• frequency
• wavelength
• amplitude
• crest

Multiple Choice

The lowest point of  a transverse wave

• crest
• trough
• amplitude
• wavelength

Multiple Choice

Light is a form of 

• energy
• radiation
• reflection

Multiple Choice

The bottom of the wave

• Crest

• Trough

• Wavelength

• Amplitude

Multiple Choice

The distance between waves (between two crests OR two troughs)

• Frequency

• Amplitude

• Wavelength

Multiple Choice

Can be used to identify heat signatures of people lost in the wilderness

• Infrared

• Radio

• Microwaves

• Ultraviolet (UV)

• X-Rays

Multiple Choice

Can be used to send communications, videos, and music short range (local areas) or long range (to space)

• Infrared

• Radio

• Microwaves

• Ultraviolet (UV)

• X-Rays

Multiple Choice

Sunlight, tanning beds, plant lights

• Infrared

• Radio

• Microwaves

• Ultraviolet (UV)

• X-Rays

Multiple Choice

Which of these types of light have the highest energy?

• Red

• Yellow

• Blue

• Violet

Multiple Choice

Which of these types of light have the lowest energy?

• Red

• Yellow

• Blue

• Violet