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Lesson 3 — 6.2 + 6.3
Period 4 — Light
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Slide 1:
Tekstslide
Light 6.1 + 6.2
Middelbare school
havo, vwo
Leerjaar 2
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26 slides
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Period 4 — Light
Slide 1 - Tekstslide
This lesson
Recap — 6.2
Studying 6.3
Discussing 6.3
Slide 2 - Tekstslide
Goals
Name the speed of light and it's name in physics
Explain how the speed of light us used as a unit of distance
Explain how astronomers use light to study space
Be able to do calculations using the speed of light
Slide 3 - Tekstslide
During classical explanation – have a question, raise your hand
While working independently – disturb the class, go to olc 2 for the rest of the lesson with extra work
Not participating serious in the class (making noise, inappropriate jokes, etc.) — go to olc 2 with extra work
After one warning — If you stand out one more time, go to olc 2 with extra work
Slide 4 - Tekstslide
Science —The coming weeks
Next week — Discussing the test + finishing up to and including paragraph 6.3
The week after that — electro magnetism practical + paragraph 6.4
Slide 5 - Tekstslide
Recap
Slide 6 - Tekstslide
Slide 7 - Tekstslide
Slide 8 - Tekstslide
6.2 Seeing things
Slide 9 - Tekstslide
Types of light
Emitted light
Reflected light
Transmitted light
Absorbed light
Slide 10 - Tekstslide
Slide 11 - Tekstslide
Transparant
Translucent
Opaque
Slide 12 - Tekstslide
Slide 13 - Video
Slide 14 - Tekstslide
Slide 15 - Tekstslide
Slide 16 - Tekstslide
Studying 6.3
Study §6.3
Write down the key concepts
Write down any questions you have or parts you don't understand
Make the yellow block and workbook exercises for §6.3
(an aeroplane travels at a speed of 900 km/h)
Slide 17 - Tekstslide
The speed of light
300 000 000 m/s
this is called 'c'
Slide 18 - Tekstslide
Light — as a distance unit
Light seconds
light minutes
light hours
light years (ly)
Slide 19 - Tekstslide
Exercise
The closest star to our sun is Proxima Centauri. This star is 40,208,000,000,000 km away from our sun.
The speed of light is 300 000 000 meters per second
How many light years away is Proxima Centauri from our sun?
Slide 20 - Tekstslide
Slide 21 - Tekstslide
Slide 22 - Tekstslide
Slide 23 - Tekstslide
The speed of light = 300 000 000 m/s — called 'c' in physics.
Light is used as a measure of distance (light years).
Astronomy studies the universe through the information in the light that reachers earth.
to measure the speed of light, technology had to invented that measures time in small enough intervals to be able to detect it.
calculations using the speed of light
Slide 24 - Tekstslide
Goals
Name the speed of light and it's name in physics
Explain how the speed of light us used as a unit of distance
Explain how astronomers use light to study space
Be able to do calculations using the speed of light
Slide 25 - Tekstslide
Slide 26 - Video
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