1) Likes and dislikes of this project…..any suggestions on how to improve???

In the project with Maroun, Budwe and I was a great success. The like in the project were

      Making a presentation

      Checking the rubric every lesson to check if we have done everything in the criteria to get an A.

      That everyone did there part of work

      There weren’t any complaints

      No fights

      Work not done at the last minute

The dislikes were:

      Chose a hard scope to get information from

      Chose a hard scope then because it was too hard, we had to chose another one with only 2 weeks remaining.

2) What areas do you think you have improved in from project 1 to project 4?

The areas that I have improved on are:

      Presentation skills

      Work Ethic skills

      Team work skills

      Finding information of the internet faster

3) What further skills would you like to develop over the next few projects?

      Photoshop skills

      Presentation skills

a) Analyse why red sunsets can sometimes be more impressive when there is more dust or pollution in the air than usual.

The red sunset all depends on how bright the white light beam. If the beam is very bright, no dust or pollution will effect the powerful red sunset, but if the white light is very dark, there will be only a small red sunset, then the dust and the pollution will effect the red sunset. The other main reason is because of scattering of light.

b) Describe what happens inside water droplets to cause a rainbow and explain how you can tell whether a rainbow is a primary or secondary.

Water droplets act like tiny prisms in the sky, sometimes the colour will hit our eyes after refracting an undergoing total internal reflection. Droplets higher in the sky refract red into our eyes, while green and blue go overhead. In drops lower in the sky, blue light is refracted and reflected to our eyes, but green and red light lower down, missing our eyes. The overall effect would be a primary rainbow – this is where red is at the top and blue is at the bottom. If it’s a secondary rainbow, blue would be at the top, and red would be at the bottom.

Investigate the two types of sight defect- long-sightedness and short sightedness.

Find the following information:

A) What causes the defect

The things that could cause defect for short sightedness are certain diseases and certain Drugs (type 2 diabetes). It also may run into families.

The things that could cause defect for long sightedness are less curved corneas – the main optical component of the eye. There may also be a hereditary component, as the children of long-sighted parents can be long-sighted. 

B) The symptoms displayed

The symptoms displayed for short sightedness are:

·         Blurry vision, particularly at night

·         Problems seeing objects up close

·         Eyestrain, Aching eyes, headaches

A child with this problem may have no symptoms, but a child with more severe and serious farsightedness may:

·         Have headaches

·         Problems reading

·         Rub his/her eyes often

C) Propose what sort of lens may be used to correct each vision.

The correct lens for a person which has long sightedness would be a convex lens, and the suitable lens for a person which has short sightedness would be a concave lens.

Fibre optic technology offers many advantages when used in medical applications.

These are the future predictions for our universe

Open Universe

If the universe has a very low mass, it will keep on expanding forever but on a decreasing rate. Eventually the stars and galaxies will shine, and the universe will be very dark and cold.

Flat Universe

The flat universe will eventually stop expanding, but will never reverse.

Closed Universe

If our universe has a very high mass, expansion will eventually stop. Gravitational attraction will pull all objects to the centre of the Earth. The universe will become a smaller and smaller place. All the objects in the middle of Earth will superheat and atoms would break up in a reversal of the big bang. Black holes would join together and it will suck in a lot of matter until a result of the “big crunch” packed everything to a single gigantic black hole. Then maybe in the future, there could be another big bang and the cycle would continue.

The Doppler Effect is an effect of sound waves, if an ambulance is driving past you at a fast paste, and you are position in front of the ambulance the siren is louder from position A (front) then position B (behind) at the same distances.

Below there is an image of the Doppler Effect and the blue and red shifts. The blue shift means that you can hear the siren louder, and the red shift means that you cannot hear the siren as loud as Position A (Blue shift), even when point A, and point B have the same distance between them and the ambulance.

The big bang theory states that the universe in all directions from a single point containing a huge and incredibly concentrated amount of energy. At the instant of creation, the universe must have been incredibly hot, with energy being converted to matter and antimatter.

This is an timeline of the big bang, it shows step by step the events an what happened during these events.

The first few minutes

1. State how old the universe is thought to be.

The age of the universe is thought to be approxiametntly 14 million years ago.

2. Identify the time when the young universe suddenly inflated.

Initially the universe expanded relatively slowly, then, within a fraction of a second, inflated suddenly to become 100 million billion billion time larger.

3. Matter and antimatter didn’t totally destroy each other after the big bang. Explain why it is lucky that this didn’t occur.

Because Earth was so hot, the energy turned into antimatter and matter

4. Identify what particles grouped into 3’s to form protons and neutrons.

I don’t understand this Question

5. A) State the proportion of hydrogen in the universe.

The proportion of hydrogen is 77%.

B) Explain why hydrogen is the most common element.

Because in water, the element hydrogen is in it, and water is very common.

6. Describe what a hydrogen nucleus.

I don’t understand this Question

The Fog clears

7. Explain why the early universe was opaque.

Because of the containing energy in the form of radiation such as X- Rays and light.

8. Describe the effect on the ‘fog’ of the continuing expansion of the universe.

The expansion of the universe dropped its temperature to 3000 degrees C.

Afterglow

9. Penzias and Wilson detected evidence for the big bang. Clarify the evidence they

collected.

They went out to detect radio waves coming from the halo of our Milky Way galaxy. One of the evidence was the afterglow of the creation of the universe.

10. State what the acronym COBE stands for.

The acronym COBE stands for Cosmic Background Explorer

Galaxies, Stars and Planets

11. Explain how galaxies and stars are formed.

They are formed by swirling clouds of gas that compacted to form the first galaxies, stars and planets.

12. Explain how ‘baby planets’ become bigger.

Rings of dusts and gas orbiting stars may condense to form younger planetsor planetsimals, which in turn attract more matter and increase in size to form planets.

The future

13. Outline the 4 main theories about the future of universe

The four main theories of the universe are:

• Open universe

• Closed universe

• Flat universe

• Accelerating universe

14. Evaluate which theory you think is most likely to represent our future.

I believe that the future will eventually turn into the Open universe theory.