Investigating the Laws of Reflection

Today in Science we did a practical about lights. We also learnt about reflections.

Aim: To investigate how light behaves when it hits a plane (flat) mirror.

Method:
1. Collect a ray box, power supply and single-slit ray slide from your teacher, and set them up to produce a single beam of light.

2. Place a plane mirror on the diagram of the protractor as described below.

3. Vary the angle of incidence and record the angle of reflection in the results table.

Result:

0 degrees = 0 degrees
10 degrees = 10 degrees
20 degrees = 20 degrees
30 degrees = 30 degrees
40 degrees = 40 degrees
50 degrees = 50 degrees
60 degrees = 60 degrees
70 degrees = 70 degrees
80 degrees = 80 degrees

The angle of reflection was the same as the angle of incidence. This could because the mirror we used was just flat and it didn't have any other shapes in it.

Art Reflection

What did you find most challenging about the print design process?
I found printing even quality the most challenging when I was printing. It was difficult to print it without any white marks on the print.

What did you find most challenging about the painting composition process?
The most challenging part was drawing thumbnail sketches. Sometimes I had details I wanted to draw but if I were to draw it as a thumbnail sketch then it would be difficult because then I would have to make it small. Some things are better big than small. In this case, I was better off drawing the different designs on the big piece.

What mistake did you make that taught you something?
When I accidentally cut my thumb when I was lino cutting it taught me not to put my fingers in front when I was cutting.

What was most successful about your work?
I think the most successful was when I finished both my print and painting to a good standard.

What could you do to improve your work?
I think if I had chosen better colours for my painting then it would look better. Also, if I had maybe done my printing better it would look better. My printing had a lot of white marks because the oil paint couldn't cover it. If I had rolled out the paint of my cut better then I think it would stop the white marks from coming and my print would be better.

Art Presentation

Reflection:

What have I learned about:

I have learnt how to print properly and the different techniques of painting.  I also learned how to cut properly so that I wouldn't cut my fingers again.

I didn't add as many details to my print and painting because I know painting and cutting them would be difficult if I were to add tiny details.

My presentation:

Vegetarian Food Reflection

What were your thoughts prior to eating?
I thought that it wouldn't taste good because of the ingredients we will use.

Did those thoughts change once you had sampled it?
Yes, my thoughts did change once I had a sample of it because it actually tasted good. It tasted different but it was fun having a go at cooking new things.

Why is it good to have one vegetarian dish per week in your diet?
It's good to have one vegetarian dish per week because it will give you more nutrients, minerals and fibre.

Meat supplies us with Protein and Iron. Give an example of a vegetable that offers this well:
Beans are rich in both protein and iron.

Hydroelectric

Give two reasons why Hydroelectric power is useful to us:

1. Using water, wind, solar and geothermal resources is better than using resources like coal, oil, and gas because they are renewable, unlike the coal, oil, and gas.
2. Water is provided free by nature so we don't have to go digging everywhere in order to find coal and risk endangering human society or the animal society.

Disadvantages of Hydroelectric power:

Disturbs aquatic life: Hydropower plants are constructed across rivers, and this can interfere with aquatic life. There is a huge chance of aquatic life finding their way into the penstock and eventually into turbines where they will get killed. Building dams in a few certain places can also interfere with mating patterns, seasons and breeding areas of the aquatic animals.

Construction needs large area: In order to build a dam, people have to install power production units, plus transformers, and fasten them onto the main grid requires a big piece of land. People may need to clear out forests or places where people live in order to achieve getting a piece of land. If we were to keep clearing out forests or places where people live then where would the animals go? Where would the humans go? If we put the human houses with the other human houses then it will get crowded. People will use more fossil fuel, and we could get more pollution. 

Hydroelectric dam:

Clyde Dam in Central Otago

Static Image

Task: Blog your static image and include your commentary.

Static image:

Commentary:

'Abomination' by Robert Swindells.

In this novel, a young girl named Martha Dewhurst is stuck living in a life where she can't do anything she wants. She can't listen to pop music, watch TV, and she can't wear shop bought clothes.

My static image portrays the idea that you can't always get everything you want in life, and that sometimes it could be depressing.

In my static image, the musical notes represent the music. The microphone represents pop music singers. The dress on the MP3 player screen represents the clothes she badly wants to wear. The forbidden sign represents how the music playing on the MP3 player is forbidden, and how the dress is also forbidden. The earphones represent how Martha likes pop music because she wants to listen to them. The quote on the screen acts like the lyrics playing from the song.  

I have included musical notes, a microphone, dress, MP3 player and earphones to my static image because these are the elements I need in order to show my idea for the quote I have chosen. I think these elements I have picked will really show the audience what I'm trying to portray, and how it connects to the quote.

My static image is not that colourful, this is because I'm trying to portray how not being able to do things can make your life dull and depressing. The only colourful object in my image is the dress. The reason for that is because that dress is her hope, and it's one of the things that can save her from her depressing life. The dress also acts as the representative for the clothes Martha wants to wear. The rest of the objects in my image is colour in black or gray. My background is the colour white because it represents how boring and plain Martha's life is. These three colours represent depression, sadness, and boringness, and those are the reasons why I have chosen to use them in my image. 

I used the quote "I like pop music, and TV and clothes but I can't have them. They're forbidden" to show that even the simplest things in life can be forbidden sometimes. 

Communism

Where did Communism begin?
It began in Germany, it was basically created by the German philosophers.

Who was the father of communism? 
Karl Marx

What are the main points? (come up with 5)

• They are all equal
• Live in a classless society
• Wear uniform
• Used by Asians and Europeans
• Used for government to have complete control