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Oh Say Can You See?
34
matter : what mechanical waves need to transfer energy
sound : type of mechanical wave that you can hear
vacuum : the absence of any particles of matter
electromagnetic : type of wave that carries energy from the Sun
force field : what enables an object to exert forces on other objects, even though they are not touching
gravity : a downward force on Earth
magnetic : field that exerts a force on other magnets
proton : particle with a positive charge
electrons : particles with negative charges
vibrations : produce an electric field
frequency : how many waves pass a given point in 1 s
wavelength : the distance from crest to crest
radiant : type of energy carried by an electromagnetic wave
speed of light : 300,000 km/s
eight : number of minutes it takes the Sun's energy to reach Earth
spectrum : the wide range of electromagnetic waves
radio : type of waves with the lowest frequency
AM : amplitude modulation
FM : frequency modulation
antenna : a piece of metal that causes electrons to vibrate
microwaves : used in ovens to heat food and in some phones
radar : RAdio Detecting and Ranging
echolocation : sound waves are reflected off an object to determine its size and location
bats : animals that use echolocation
infrared : heat that you can sense with your skin
pit vipers : animals that can detect infrared waves
visible : type of electromagnetic wave that can be detected with your eyes
UV : type of radiation slightly higher in frequency than visible light
sunburn : caused by too much exposure to the Sun's UV rays
vitamin D : the vitamin produced by exposure to the Sun's UV rays
ultraviolet : used to disinfect surgical equipment in hospitals
xrays : rays with more energy than UV rays
gamma : rays that have the highest frequency
carrier waves : the radio waves broadcast by a station at its assigned frequency
telephone : contains a microphone in the mouthpiece and converts a sound wave into an electric signal
speaker : changes the electric signal into a sound wave
Oh Say Can You See?
Across:6. | what mechanical waves need to transfer energy | 7. | used to disinfect surgical equipment in hospitals | 9. | produce an electric field | 11. | type of waves with the lowest frequency | 12. | type of mechanical wave that you can hear | 15. | used in ovens to heat food and in some phones | 18. | a piece of metal that causes electrons to vibrate | 19. | how many waves pass a given point in 1 s | 21. | animals that use echolocation | 23. | a downward force on Earth | 25. | the distance from crest to crest | 26. | the wide range of electromagnetic waves | 28. | what enables an object to exert forces on other objects, even though they are not touching | 29. | type of electromagnetic wave that can be detected with your eyes | 30. | RAdio Detecting and Ranging | 31. | type of wave that carries energy from the Sun |
| | Down:1. | number of minutes it takes the Sun's energy to reach Earth | 2. | particle with a positive charge | 3. | particles with negative charges | 4. | rays with more energy than UV rays | 5. | contains a microphone in the mouthpiece and converts a sound wave into an electric signal | 8. | field that exerts a force on other magnets | 10. | animals that can detect infrared waves | 12. | 300,000 km/s | 13. | type of energy carried by an electromagnetic wave | 14. | the absence of any particles of matter | 16. | caused by too much exposure to the Sun's UV rays | 17. | changes the electric signal into a sound wave | 18. | amplitude modulation | 20. | sound waves are reflected off an object to determine its size and location | 22. | the vitamin produced by exposure to the Sun's UV rays | 24. | heat that you can sense with your skin | 27. | type of radiation slightly higher in frequency than visible light | 28. | frequency modulation |
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© 2016
PuzzleFast.com, Noncommercial Use Only
Oh Say Can You See?
Across:6. | what mechanical waves need to transfer energy | 7. | used to disinfect surgical equipment in hospitals | 9. | produce an electric field | 11. | type of waves with the lowest frequency | 12. | type of mechanical wave that you can hear | 15. | used in ovens to heat food and in some phones | 18. | a piece of metal that causes electrons to vibrate | 19. | how many waves pass a given point in 1 s | 21. | animals that use echolocation | 23. | a downward force on Earth | 25. | the distance from crest to crest | 26. | the wide range of electromagnetic waves | 28. | what enables an object to exert forces on other objects, even though they are not touching | 29. | type of electromagnetic wave that can be detected with your eyes | 30. | RAdio Detecting and Ranging | 31. | type of wave that carries energy from the Sun |
| | Down:1. | number of minutes it takes the Sun's energy to reach Earth | 2. | particle with a positive charge | 3. | particles with negative charges | 4. | rays with more energy than UV rays | 5. | contains a microphone in the mouthpiece and converts a sound wave into an electric signal | 8. | field that exerts a force on other magnets | 10. | animals that can detect infrared waves | 12. | 300,000 km/s | 13. | type of energy carried by an electromagnetic wave | 14. | the absence of any particles of matter | 16. | caused by too much exposure to the Sun's UV rays | 17. | changes the electric signal into a sound wave | 18. | amplitude modulation | 20. | sound waves are reflected off an object to determine its size and location | 22. | the vitamin produced by exposure to the Sun's UV rays | 24. | heat that you can sense with your skin | 27. | type of radiation slightly higher in frequency than visible light | 28. | frequency modulation |
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© 2016
PuzzleFast.com, Noncommercial Use Only