Sound

• Nask / Techniek
• Middelbare school
• vmbo b
• Leerjaar 2

Chapter6: Sound

READ PAGES 180 – 184

 in complete silence.

Describe what the blue words mean in your own words. 

Do your homework

Book 8.1 questions 1,2,3,4,5

Keep the noise down. 

If you are done. work further on 6,7,8,9 and 10. 
 

Make sound

• Source of sound 
• Tunningfork
  

How can you hear sound?

• What is sound?
• How does sound get to my ear?
• My ear
  

What is another name for something that creates sound?

1. A heat source
2. A machine
3. A source of sound
4. A chair

What is sound?

1. The air in the sky
2. A vibration that travels throught he air
3. A string of a guitar
4. A drumset

Arthur talks to me in space, but I can't hear him. That is because there is no …. in space.

Speed of sound

Sound has a speed. Have you ever seen a thunderstruck?

sound can travel 343 meters in 1 second!!

Ayoub sees lightning! He sees the lightning but he hear the strike 5 seconds later. How far was the lightning strike? speed of sound was 343m/s

Now you see lightning. You count to 8 and hear the lightning strike. How far is the lightning strike?

1. 344 meter
2. 1737 meter
3. 3450 meter
4. 2744 meter

Music Instruments

• Who plays a instrument?
• Sound pitch
• How to tune a instrument ?

The tenser i tune my guitar strings, the ......  the pitch of the sound becomes.

Higher

lower

thinner

Make assignments.

1,2,3,4,5,6,7,8,9,10.

You can discuss with your neighbour.

Cern excursion

What is a particle accelerator?

Homework Sound 8.1

Quick check if everyone has their homework

Peer feedback (on your own)

1. Give your homework to your neighbour.

2.  Check their homework for mistakes.

Answers are projected on the digiboard.

Feedback (together)

3. in pairs choose one assignment that had errors.

4. Help each other to understand the assignment.

Learning goals

Learn what amplitude is.

Learn what decibels are

Read pages 205-208 in complete silence.

Describe what the blue words mean in your own words. 

Do homework. Discuss at low volume.

8.4: Do 1,2,5,6,7. 

Play and explore 

https://phet.colorado.edu/en/simulations/sound-waves

Lesson Closer

Brief game.