uv-, ir-radiation

Uv, IR radiation
Lessonup
- Yes
Bags in
the cuboard
Phones in the phone holder
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Slide 1: Diapositive
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Uv, IR radiation
Lessonup
- Yes
Bags in
the cuboard
Phones in the phone holder

Slide 1 - Diapositive

Lessongoals:
  • Name and explain the different kinds of electromagnetic radiation.
  • Name and explain the different applications of electromagnetic radiation.  

Slide 2 - Diapositive

The electromagnetic spectrum
There is also solar radiation which you can not see, but you can detect it in other ways.

Slide 3 - Diapositive

Uv radiation
  • Drinking water supply companies use UV radiation to kill bacteria in the water. 
  • Bees can see UV radiation.
  • A large portion of the UV 
        radiation is blocked by the 
       ozone layer, clouds and 
       dust particles

Slide 4 - Diapositive

Slide 5 - Vidéo

Which type of radiation is used by bees to better see the stammens of flowers?
A
IR
B
UV
C
Gamma
D
x-ray

Slide 6 - Quiz

Next to which colour do we find UV radiation?
A
Red
B
Violet
C
Radio
D
IR

Slide 7 - Quiz

Which of the following is a use of UV radiation?
A
night vision weapons
B
Remote control of a television
C
Photo's to observe broken bones
D
Killing bacteria

Slide 8 - Quiz

Infrared radiation
Also called thermal radiation.
Examples: 
  • A coal fire, 
  • Sunlight, 
  • Remote controll of a TV, 
  • Rattlesnakes have grooves in their heads that are sensititve    to infrared radiation. They use it to spot prey at night.

Slide 9 - Diapositive

Slide 10 - Vidéo

What type of radiation does a rattlesnake use to spot it's prey at night?
A
UV
B
Gamma
C
IR
D
Micro

Slide 11 - Quiz

Why is there more UV radiation high in the mountains?
A
It is closer to the sun
B
There is less atmosphere
C
There is a higher oxygen level
D
Mountains reflect UV radiation

Slide 12 - Quiz

Do the following questions:
6.4: 1t/m6
In your writingbook
Rules: 
- time 7 minutes
- No talking

Slide 13 - Diapositive