1. Waves
Light
Electromagnetic
Radiation
Earth Day
Science
Free for all 10 10 10 10 10 20 20 20 20 20 30 30 30 30 30 40 40 40 40 40 50 50 50 50 50

2. Return to Question Board
10 points
Question: A sound wave is this type of wave. (Hint: air moves back and forth in the same direction that the wave travels).
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3. Return to Question Board
10 points
A N S W E R:
Compression Wave
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4. Return to Question Board
20 points
Question: When you measure a wave from the crest to the rest position, you are measuring this.
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20 points
A N S W E R:
The amplitude
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6. Return to Question Board
30 points
Question: Wave A has a frequency of 7 Hz. Wave B has a frequency of 17Hz. Which wave has the longer wavelength?
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7. Return to Question Board
30 points
A N S W E R:
Wave A
(7 Hz)
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8. Return to Question Board
40 points
Question: Draw a picture of a water wave. Show which direction a floating duck would move in the wave and which way the energy is moving.
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9. Return to Question Board
40 points
A N S W E R:
Duck moves up and down; energy moves forward
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10. Question: what type of wave does NOT need a medium to travel though?
50 points
Question: what type of wave does NOT need a medium to travel though?
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11. Return to Question Board
50 points
A N S W E R:
Light waves, radio waves
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12. Return to Question Board
10 points
Question: What happens if you shine light into a chunk of glass? (draw a picture and describe)
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10 points
A N S W E R:
The light is refracted (it bends) as it enters the glass and again as it leaves
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14. Return to Question Board
20 points
Question: What are the colours of the visible spectrum of light (in order of shortest wavelength to longest)
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20 points
A N S W E R:
Violet, Indigo, Blue, Green, Yellow, Orange, Red
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16. Question: What causes a rainbow to appear after a rainy day?
30 points
Question: What causes a rainbow to appear after a rainy day?
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17. Return to Question Board
30 points
A N S W E R:
Light from the sun is refracted when it passes through water droplets
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18. Return to Question Board
40 points
Question: Which colours of the spectrum are absorbed by a black car? Which colours are reflected?
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40 points
A N S W E R:
All the colours are absorbed. None are reflected.
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20. Return to Question Board
50 points
Question: If a beam of white light is shone through two prisms, what is colour is the light that comes out the end?
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21. Return to Question Board
50 points
A N S W E R:
White light
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22. Return to Question Board
10 points
Question: These waves have the longest wavelength in the electromagnetic spectrum and are used in magnetic resonance imaging (MRI).
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23. Return to Question Board
10 points
A N S W E R:
Radio Waves
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24. Return to Question Board
20 points
Question: Describe the wavelength, energy and frequency of gamma rays (compared to the rest of the electromagnetic spectrum).
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25. Return to Question Board
20 points
A N S W E R:
Shortest wavelength, highest energy, highest frequency
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26. Return to Question Board
30 points
Question: This type of radiation lies just beyond the violet end of the visible region and helps your body produce vitamin D.
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27. Return to Question Board
30 points
A N S W E R:
Ultraviolet
Waves
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28. Return to Question Board
40 points
Question: (1) This is used to help track aircrafts and also for weather forecasting. (2) It belongs to this category of electromagnetic radiation.
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29. Return to Question Board
40 points
A N S W E R:
Radar
Radio waves
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30. Return to Question Board
50 points
Question: This type of radiation is used in airport security and also dentistry. It has a shorter wavelength and higher frequency that UV waves.
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31. Return to Question Board
50 points
A N S W E R:
X Rays
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32. Return to Question Board
10 points
Question: This process allows us to make glass containers at only 2/3 of the energy used when make them from scratch.
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33. Return to Question Board
10 points
A N S W E R:
Recycling
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34. Return to Question Board
20 points
Question: installing these more efficient items allow us to save money and energy in our homes and schools…
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35. Return to Question Board
20 points
A N S W E R:
Light bulbs
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36. Return to Question Board
30 points
Question: This slogan also known as the three R’s helps us keep trash down to a lower level…
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37. Return to Question Board
30 points
A N S W E R:
Reduce, Re-use, Recycle
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38. Return to Question Board
40 points
Question: This year, a global goal is to reduce the amounts of this gas in the atmosphere…
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39. Return to Question Board
40 points
A N S W E R:
Carbon dioxide
CO2
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40. Question: 1/3 of all water used in your home is used doing this…
50 points
Question: 1/3 of all water used in your home is used doing this…
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41. Return to Question Board
50 points
A N S W E R:
Flushing the toilet
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42. Question: every ton of paper recycled saves this many trees…
10 points
Question: every ton of paper recycled saves this many trees…
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43. Return to Question Board
10 points
A N S W E R:
17 trees
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44. Return to Question Board
20 points
Question: This planet has a lower density than water. So if the whole planet were put in water, it would float.
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45. Return to Question Board
20 points
A N S W E R:
Saturn
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46. Return to Question Board
30 points
Question: The largest eggs in the world are laid by this animal (hint: it lives in the water…)
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47. Return to Question Board
30 points
A N S W E R:
sharks
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48. Return to Question Board
40 points
Question : 40-50% of your body heat can be lost through this part of your body…
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49. Return to Question Board
40 points
A N S W E R:
Your head
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50. Return to Question Board
50 points
Question: No matter the size of thickness, a piece of paper cannot be folded in half more than this many times.
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51. Return to Question Board
50 points
A N S W E R:
7 times
(really!)
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