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

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). Return to Question Board See Answer

Return to Question Board 10 points A N S W E R: Compression Wave Return to Question Board

Return to Question Board 20 points Question: When you measure a wave from the crest to the rest position, you are measuring this. Return to Question Board See Answer

Return to Question Board 20 points A N S W E R: The amplitude Return to Question Board

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? Return to Question Board See Answer

Return to Question Board 30 points A N S W E R: Wave A (7 Hz) Return to Question Board

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. Return to Question Board See Answer

Return to Question Board 40 points A N S W E R: Duck moves up and down; energy moves forward Return to Question Board

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? Return to Question Board See Answer

Return to Question Board 50 points A N S W E R: Light waves, radio waves Return to Question Board

Return to Question Board 10 points Question: What happens if you shine light into a chunk of glass? (draw a picture and describe) Return to Question Board See Answer

Return to Question Board 10 points A N S W E R: The light is refracted (it bends) as it enters the glass and again as it leaves Return to Question Board

Return to Question Board 20 points Question: What are the colours of the visible spectrum of light (in order of shortest wavelength to longest) Return to Question Board See Answer

Return to Question Board 20 points A N S W E R: Violet, Indigo, Blue, Green, Yellow, Orange, Red Return to Question Board

Question: What causes a rainbow to appear after a rainy day? 30 points Question: What causes a rainbow to appear after a rainy day? Return to Question Board See Answer

Return to Question Board 30 points A N S W E R: Light from the sun is refracted when it passes through water droplets Return to Question Board

Return to Question Board 40 points Question: Which colours of the spectrum are absorbed by a black car? Which colours are reflected? Return to Question Board See Answer

Return to Question Board 40 points A N S W E R: All the colours are absorbed. None are reflected. Return to Question Board

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? Return to Question Board See Answer

Return to Question Board 50 points A N S W E R: White light Return to Question Board

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). Return to Question Board See Answer

Return to Question Board 10 points A N S W E R: Radio Waves Return to Question Board

Return to Question Board 20 points Question: Describe the wavelength, energy and frequency of gamma rays (compared to the rest of the electromagnetic spectrum). Return to Question Board See Answer

Return to Question Board 20 points A N S W E R: Shortest wavelength, highest energy, highest frequency Return to Question Board

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. Return to Question Board See Answer

Return to Question Board 30 points A N S W E R: Ultraviolet Waves Return to Question Board

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. Return to Question Board See Answer

Return to Question Board 40 points A N S W E R: Radar Radio waves Return to Question Board

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. Return to Question Board See Answer

Return to Question Board 50 points A N S W E R: X Rays Return to Question Board

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. Return to Question Board See Answer

Return to Question Board 10 points A N S W E R: Recycling Return to Question Board

Return to Question Board 20 points Question: installing these more efficient items allow us to save money and energy in our homes and schools… Return to Question Board See Answer

Return to Question Board 20 points A N S W E R: Light bulbs Return to Question Board

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… Return to Question Board See Answer

Return to Question Board 30 points A N S W E R: Reduce, Re-use, Recycle Return to Question Board

Return to Question Board 40 points Question: This year, a global goal is to reduce the amounts of this gas in the atmosphere… Return to Question Board See Answer

Return to Question Board 40 points A N S W E R: Carbon dioxide CO2 Return to Question Board

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… Return to Question Board See Answer

Return to Question Board 50 points A N S W E R: Flushing the toilet Return to Question Board

Question: every ton of paper recycled saves this many trees… 10 points Question: every ton of paper recycled saves this many trees… Return to Question Board See Answer

Return to Question Board 10 points A N S W E R: 17 trees Return to Question Board

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. Return to Question Board See Answer

Return to Question Board 20 points A N S W E R: Saturn Return to Question Board

Return to Question Board 30 points Question: The largest eggs in the world are laid by this animal (hint: it lives in the water…) Return to Question Board See Answer

Return to Question Board 30 points A N S W E R: sharks Return to Question Board

Return to Question Board 40 points Question : 40-50% of your body heat can be lost through this part of your body… Return to Question Board See Answer

Return to Question Board 40 points A N S W E R: Your head Return to Question Board

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. Return to Question Board See Answer

Return to Question Board 50 points A N S W E R: 7 times (really!) Return to Question Board