waves sound light mirror and lenses test
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| AM Radio Waves Ultraviolet Light X Rays Visible Light What is true for ALL of the examples of electromagnetic waves? | They all move at the same speed in a vacuum
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| Sound waves travel fastest through A) air. B) steel. C) water. D) a vacuum. | steel.
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| The wavelength and energy of a wave are inversely proportional. Based on this, which wave listed would have the LOWEST energy. | wave with wavelength of 600 km
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| What is the relationship between the wavelength of a wave and its energy? | They are inversely proportional.
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| Which region of the electromagnetic spectrum has the longest wavelength? | Radio Waves
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| Sound travels fastest through A) space. B) cool air. C) warm air. D) a metal spoon. | a metal spoon.
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| Which of these waves can NOT travel through the vacuum of space? A) microwaves B) radio waves C) light waves D) sound waves | sound waves
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| Energy is inversely proportional to the wavelength of a wave. Which would have the GREATEST energy? A wave with a wavelength of ______ meters. | 5
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| A pebble is thrown into a calm lake, ripples are formed from the center and move outward. The water particles in the lake travel in a circular pattern that moves up and down on the surface of a lake, and the energy travels | horizontally.
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| Sound waves are transferred by the compression of particles. The closer the particles are to one another, the faster the energy is transferred. Therefore, sound energy directly depends upon the _________ of the medium. | density
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| Which type of wave can be transmitted through the vacuum of space | radio waves
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| A train whistle is at a higher pitch (note) as it approaches you and then drops to a lower pitch as it moves away. This effect is called | the Doppler effect
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| Ocean waves move up and down in circles, but transmit ____________ horizontally toward the shore. | energy
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| The wavelengths of radio waves are much _______________ than the wavelength of microwaves. Therefore, radio waves carry much __________ energy than a microwave. | longer,less
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| Ultraviolet radiation is dangerous because it has a high enough energy to damage skin cells.UV radiation is called ultraviolet because it has a frequency which is higher than violet radiation .Therefore it has a wavelength which is_than violet radiation. | smaller
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| According to the electromagnetic spectrum, Gamma rays have the shortest wavelength. Therefore, Gamma rays have ______________ frequency. | highest
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| one Klingon spaceship blows up a Droid spaceship with a laser gun. The Klingon crew watches out the port window and covers their ears to muffle the noise from the explosion. Scientifically, this scene is inaccurate because | the sound of the explosion would not be transmitted back to their ship.
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| When light enters a pair of glasses, it ______________ when it hits the glass. | refracts
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| Reflection is the bouncing of light rays off of a surface. Which situation is NOT an example of reflection? | focusing light through a camera lens
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| When light hits a smooth, shiny surface, the light | reflects
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| An echo is an example of sound wave | reflection
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| Houses with carpet are much quieter than houses with tile or hardwood floors because of sound wave | absorption.
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| Unknown to the teacher, while she is outside the room, the sound waves are transmitted around the edge of the door and spread out on the other side and you can hear the conversation. This is due to sound wave | diffraction
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| In which medium would sound travel the fastest? | through a railroad track
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| Have you heard an ambulance, police car, or fire truck recently? Did you notice that the pitch of the siren changed as it approached you and then again as it moved away? What concept explains this change or shift in sound waves? | Doppler effect
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| According to the Doppler Effect, which statement is true about a sound as it approaches you and then moves away. | As the source approaches you, the sound waves are compressed so the pitch of the noise increases.
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| Why does the sound of something moving away from you seem to change to a lower and lower pitch? | As the source moves away, the sound waves stretches out relative to the person standing still; so the pitch drops
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| Which statement does NOT explain the concept of the Doppler Effect? | As a sound source moves away from a stationary object, the sound waves are compressed, increasing the pitch.
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| light waves | do not require a medium
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| What type of waves move energy forward, but the source moves up and down? | transverse waves
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| Why does light refract when it encounters the glass in a lens? | because electromagnetic radiation does not need a medium to travel through
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| In what way are all sound waves and light waves similar? | They both transmit energy
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| All waves carry | energy
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| Which radiation has a higher frequency than visible light? | X-rays
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| In old western movies, cowboys often would put their ear to a train track to listen for an oncoming train. What benefit would this method provide over listening for a train by listening for sound through the air? | The sound would reach him sooner.
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| Dolphins communicate using compression waves. Some of these sounds are outside the range of human hearing. Upon spotting a hungry shark, dolphin A sends a message to dolphin B. To send this message as quickly as possible, dolphin A would | send the message under water.
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| Use your knowledge of the properties of the different states of matter to determine in which state sound would travel the fastest. | dry ice - solid carbon dioxide
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| Why does the frequency of a siren get higher as an ambulance using that siren gets closer? | As the ambulance gets closer, the sound waves are compressed relative to the person; so the frequency increases.
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| What does the person in back of the ambulance experience? | a lower frequency of the siren
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| When describing electromagnetic radiation, there is a(n) _____________ relationship between wavelength and frequency and the greater the frequency, the ____________ energy the electromagnetic radiation has | inverse; more
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| As the ambulance got closer, Marge noticed that the pitch of the siren got higher. This happened because | the sound waves were pushed closer together.
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| Sound waves require a medium to travel through, such as a solid, liquid or gas because | sound is molecules bumping into one another.
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| Which two forms of energy travel in waves? | light and sound
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| You see lightning before you hear thunder because | light waves travel faster than sound waves.
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| A student observes that it is hard to hear music underwater in a pool. They state that the sound is always muffled. They conclude that the speed of sound in water must be slower than in air. What would you say about the validity of this conclusion? | The conclusion is not valid. The speed of sound should be greater in solids. Muffling is not about the speed of the wave.
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| As we move through the visible spectrum, red to violet (right to left in the image), the wavelength __________ and the frequency ____________. | decreases; increases
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| You see an image of yourself in a mirror because light waves are | reflected back at you.
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| We can see because light is | reflected
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| Although you can see the pencil, it appears broken in the glass of water. This is because | electromagnetic waves travel at different speeds through different media.
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| The speed of sound waves through two different media, steel and air | faster through steel than through air.
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| As the band passed by, the beating drums and trumpets made Billy feel like his body was beating with the music. He could hear the music and he could feel it! How would a scientist explain this to Billy? | Sound waves transmit energy through all forms of matter.
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| If we compare and contrast electromagnetic waves with sound waves, all BUT one statement is true. That is | electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere.
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| It is recommended that children have no more than two sets of dental X-rays per year. Although X-rays have many benefits, they can be dangerous to human health because they are | high frequency, high energy waves.
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| . Radioactive materials used in plants emit particles but they also emit high energy waves that are potentially lethal to human life. These waves are _ waves. | gamma
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| Burned Becky stayed out in the sun too long and is now suffering from a terrible sunburn. What caused Becky's sunburn? | Ultraviolet radiation from the sun
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| Boom! Boom! Boom! The car passed Steve's house and the blaring music from the car's radio rattled the windows. How would a scientist explain this to Steve? | Sound energy travelled as waves and caused the windows to vibrate.
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Created by:
evangelynnm