YR1_T1_LSN6

Science: Lesson 6

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  • Notebook
  • Macbook
  • Google Classroom
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Slide 1: Slide
ScienceMiddelbare schoolhavo, vwoLeerjaar 1

This lesson contains 19 slides, with text slides and 1 video.

Items in this lesson

Science: Lesson 6

Get Ready:
  • Textbook
  • Notebook
  • Macbook
  • Google Classroom
  • Kwizl
  • Lessonup

Slide 1 - Slide

Plan for today: 


  1. Check your homework. (check your homework for mistakes and discuss this with your group members.)
  2. Start Topic 1.5. (Read the text, take down new notes and get instructions for upcoming lessons).
  3. Check your quiz. (Discuss the quiz and complete the reflection form so you know what you can improve.) 
  4. Microscope prep. (brief instructions on how to use a microscope in preparation for the next lesson).

Slide 2 - Slide

Answers hw exercises:

35.  The faster the vibrations, the higher the frequency.
The bigger the amplitude, the louder the sound
The longer the wavelength, the lower the frequency
The smaller the amplitude, the softer the sound

36.  energy, vibrate, vacuum, softer, spread

37. The higher the frequency (Hertz, or: Hz), the higher the pitch:
35 Hz
200 Hz
387 Hz

Slide 3 - Slide

Answers hw exercises:

38. Answer is: B.
Why? Sound wave 2 is louder than sound wave 1, so the amplitude of sound wave 2 is higher than A. And sound wave 2 is lower in pitch than sound wave 1, so the frequency of sound wave 2 is lower than f (the frequency of sound wave 1).

39.Amplitude of sound wave 1 = 4. Amplitude of sound wave 2 = 3.
Sound wave 2 has a higher pitch, as there are more vibrations and the sound waves are faster than for sound wave.

40. The second sound wave will sound louder, because of the greater amplitude. The second sound wave will have a higher pitch, because of the shorter wavelength (and higher frequency).


Slide 4 - Slide

Answers hw exercises:

41. 







42. Astronauts are in space, which is a vacuum. There are no particles that can vibrate and pass on the sound.

43. The low pitch from the bass drum you can hear long before the piccolo, which is high pitch. This is because the wavelength of the bass drum is much longer than that of the piccolo. And the longer wavelength reaches your ear earlier.

44. In a vacuum sound cannot travel, because in a vacuum there are no particles that can vibrate and pass on the sound.



Slide 5 - Slide

LSN 6-T1.5: Light and Colour 



  • I can explain what a light wave is and how it travels.
  • I know what all the colours of the visible spectrum are, in order from lowest to highest frequency.
  • I know that white light is a combination of all colours in the visible spectrum.
  • I know what colours of light are reflected or absorbed based on an object’s colour.
  • I know that white objects reflect all light and black objects absorb all light.
  1. • *VWO ONLY - I know what color an object will appear when a
  2. colored light shines on it
p. 32-37

Slide 6 - Slide

LSN 6 - T1.5: Light and Colour 


Keywords:

  • light
  • visible spectrum
  • reflect
  • absorb
p. 32-37

Slide 7 - Slide

Light



  • Is a form of energy that travels in waves, but unlike sound, light does not need molecules to help it spread.
  • Allows people and animals to see things.
p. 32-37

Slide 8 - Slide

Light Sources



  • There are 2 types of light sources
  • Natural light
  • The sun and stars
  • Fire
  • Lightening
  • Artificial light
  • A lamp
  • Telephone screen
  • Laser 

p. 32-37

Slide 9 - Slide

Light Sources



The visible spectrum is made of the colours we can see with the naked eye. Different colours of light have different frequencies.
Which color has the lowest frequency? The highest?
p. 32-37

Slide 10 - Slide

White Light



White light is made of all the colours of the visible spectrum.
We can split white light into its colours by using a prism.

p. 32-37

Slide 11 - Slide

How do we see colour?



The human eye sees color when light bounces (reflects) off an object and goes into our eye. The color of light that gets reflected is the color that we see.  

All other colors of light get 
absorbed by the object so that 
we don’t see them.


p. 32-37

Slide 12 - Slide

Seeing black and white




White objects reflect all the colors 
which together make the color white.

Black objects absorb all the colors 
so there is nothing left to see.



p. 32-37

Slide 13 - Slide

Coloured light



Different colours of light can have an effect on what color an object appears to be.  




p. 32-37

Slide 14 - Slide

Discussing the quiz:



T. 1.1-1.3
Check your mistakes. Discuss this in your groups and make sure you take notes. 

There is a test about this chapter after the holidays, this includes these Topics.
timer
15:00

Slide 15 - Slide

Is everything clear now?



T. 1.1-1.3

Slide 16 - Slide

Slide 17 - Slide

Slide 18 - Video

Homework for next time:



  • Questions 45 until 55
  • Work through the lessonup on how to use the microscope





p. 32-37

Slide 19 - Slide