1. The ray model of light shows the directions that the light rays travel when they're being emitted.
2. Feature not available.
3. -The directions that the rays travels.
-What objects are being affected or reflecting the light.
4.-The light can bounce off the object.
-The light can be absorbed by the object.
-The light can be reflected by the object.
Due to Materials:
- Light can go through.
- Obscured amount of light can go through.
- No light can go through.
8.a) Diffuse reflections are reflections of light from a rough surface while regular reflection is reflection of light from a smooth surface.
b) Diffuse reflection: Light reflecting of a paper bag.
Regular reflection: Mirror
11. The ray model can show where the basketball can theoretically bounce off light so it can outline the shape of the basketball.
12.A piece of wood has a rough unpolished surface while a piece of metal has a shiny, polished, and smoother surface. As we know polished and smoother surfaces provide better reflections therefore metal would work better.
Thursday 2 May 2013
10.1 Check and Reflect Questions Questions 3-13
3. Electromagnetic radiation are energy waves created by electromagnetic sources. An example of electromagnetic radiation: Radio waves.
4.a) In order (ascending): Ultraviolet, X-Ray, and Gamma Rays.
b) UV rays: Kills Bacteria, cleans water, and used for forensic purposes.
X-Ray: Medical Imaging.
Gamma Rays: Medical Imaging.
5.a) In order (ascending): Radio waves, Microwaves, Infrared waves.
b) Radio Waves: Communication.
Microwaves: Culinary purposes, Cooking.
Infrared Waves: Detect energy loss.
6. The higher the frequency, the shorter wavelength, and the higher power the electromagnetic radiation would have.
The lower the frequency, the longer wavelength, and the smaller power the electromagnetic radiation would have.
7. Violet, Blue, Green, Yellow, Orange, Red.
8.a) Red light has a longer wavelength.
b) Blue would have a higher frequency due to shorter wavelength.
9.They will see yellow when red light and green light overlap.
10.a) They both are types of electromagnetic radiation.
b) They both have different frequencies and wavelengths.
11.a) Very short wavelength.
b) Shorter wavelengths= higher frequency= deadlier radiation and higher radiation levels
higher radiation exposed to body can cause DNA mutations within cells and cancer.
12.a) Its probably going to appear black since no light is bouncing off the balloon (theoretically).
b) Its probably going to appear black since there is no light bouncing off the balloon.\
13. Since an object "bounces off" the colour of rays that are equivalent to its colour. In this case if you paint a house white, it would bounce off all the light rays since white light is made out of every colour within the spectrum. Therefore the building would not absorb any light energy to convert to heat which will keep it cool within the building
4.a) In order (ascending): Ultraviolet, X-Ray, and Gamma Rays.
b) UV rays: Kills Bacteria, cleans water, and used for forensic purposes.
X-Ray: Medical Imaging.
Gamma Rays: Medical Imaging.
5.a) In order (ascending): Radio waves, Microwaves, Infrared waves.
b) Radio Waves: Communication.
Microwaves: Culinary purposes, Cooking.
Infrared Waves: Detect energy loss.
6. The higher the frequency, the shorter wavelength, and the higher power the electromagnetic radiation would have.
The lower the frequency, the longer wavelength, and the smaller power the electromagnetic radiation would have.
7. Violet, Blue, Green, Yellow, Orange, Red.
8.a) Red light has a longer wavelength.
b) Blue would have a higher frequency due to shorter wavelength.
9.They will see yellow when red light and green light overlap.
10.a) They both are types of electromagnetic radiation.
b) They both have different frequencies and wavelengths.
11.a) Very short wavelength.
b) Shorter wavelengths= higher frequency= deadlier radiation and higher radiation levels
higher radiation exposed to body can cause DNA mutations within cells and cancer.
12.a) Its probably going to appear black since no light is bouncing off the balloon (theoretically).
b) Its probably going to appear black since there is no light bouncing off the balloon.\
13. Since an object "bounces off" the colour of rays that are equivalent to its colour. In this case if you paint a house white, it would bounce off all the light rays since white light is made out of every colour within the spectrum. Therefore the building would not absorb any light energy to convert to heat which will keep it cool within the building
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