# §5.4 + §5.5

Before you do the questions:
1. You are setup in a group through zoom.
2. One of you shares your screen with the presentation on it.
3. Set lessonup to presentation mode.
4. One of you writes down the answers you come to in a word document (if this isn't possible, aks mr. Brands for help)
5. Now you're ready, start the questions
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Slide 1: Tekstslide
Natuurkunde / ScheikundeMiddelbare schoolhavoLeerjaar 1

In deze les zitten 18 slides, met tekstslides.

## Onderdelen in deze les

Before you do the questions:
1. You are setup in a group through zoom.
2. One of you shares your screen with the presentation on it.
3. Set lessonup to presentation mode.
4. One of you writes down the answers you come to in a word document (if this isn't possible, aks mr. Brands for help)
5. Now you're ready, start the questions

Recap last week.

#### Slide 2 -Tekstslide

How many waves do you count in each image?
Image 1
Image 2

#### Slide 3 -Tekstslide

If one square is 3 cm long, what is the wave length of each wave?
Image 1
Image 2

#### Slide 4 -Tekstslide

One square is 3 cm long, what is the wave length of each wave?
Image 1
Image 2

#### Slide 5 -Tekstslide

One square is 3 cm, what is the amplitude of the wave below?

#### Slide 6 -Tekstslide

Of these two sound waves, which will produce a louder sound? Explain.
Image 1
Image 2

#### Slide 7 -Tekstslide

What is the amplitude of a wave? Explain in your own words.

#### Slide 8 -Tekstslide

Request mr. Brands to join to go over the questions you have answered so far.

#### Slide 9 -Tekstslide

Which of these two audio samples has the highest pitch?
A
B

#### Slide 10 -Tekstslide

Which of these two audio samples has the highest frequency?
A
B

#### Slide 11 -Tekstslide

See the two images below. in both images 1 second goes by.

a) How many waves are there in one second in each image?
b) what is the frequency of the waves in each image?
C) Which wave will produce the highest pitch?
Image 1
Image 2

#### Slide 12 -Tekstslide

What is the frequency of a wave? Explain in your own words.

#### Slide 13 -Tekstslide

What is the relationship between pitch and frequency?

#### Slide 14 -Tekstslide

Request mr. Brands to join to go over the questions you have answered so far.

#### Slide 15 -Tekstslide

A speaker produces a sound wave of 18 Hz.
a) Would you hear any sound from it? Explain.

b) Would an elephant hear any sound from it? Explain.

c) You decide to let the speaker play a higher frequency. How high could you go so that we can still hear it?

d) Above what frequency will you stop hearing any sound?

#### Slide 16 -Tekstslide

Which of these sounds has the highest amplituded? which has the lowest?

Which sound has the highest frequency? which has the lowest?
A
B
D
C

Done?