A) thermal energy B) impulse C) mechanical Wave D) reaction force
A) the high energy of the Sun B) a vacuum C) artificial lights D) the energy of distant stars
A) ultraviolet light B) visible light C) radio waves D) microwaves
A) True B) False
A) longitidunal wave B) transverse Wave C) thermal wave D) vibrational wave
A) interference wave B) transverse wave C) node D) longitudinal wave
A) seismic waves B) sound waves C) light waves D) water waves
A) sound waves B) water waves
A) violet B) red C) yellow D) blue E) green
A) violet B) blue C) yellow D) green E) red
A) radio waves B) gamma rays C) ultraviolet light D) infrared light
A) radio waves B) gamma rays C) x-rays D) ultraviolet light
A) electromagnetic waves B) mechanical waves C) when the queen greets her subjects while cleaning
A) a gross brown colour B) white light C) a path to lucky charms D) black light
A) ultraviolet light B) radio waves C) x-rays D) gamma rays
A) Vibrations B) Energy C) Waves D) All of these are correct E) Captured in our Ears
A) There is a rainbow present in the sky. B) A moving object is emitting sound continuously. C) The waves are really distorted in the front where the sound is and not in the back after the object moves away D) The waves are moving like the ripples in a pond from a rock
A) Gases B) Liquids C) Solids D) Space
A) A figment of your imagination B) Sound bouncing back to you off a solid object C) Sound that DOES NOT bounce back to you D) Sound that bounces in all directions
A) Amplitude B) Intensity C) Hertz D) Frequency E) Velocity
A) The unit of measure that is used to measure wavelength B) The unit of measure used to measure frequency C) The unit of measure to measure tone quality D) The unit of measure used to measure the loudness
A) Decibels B) Frequency C) It does not have a relation D) Speed E) Amplitude
A) 100 dB B) 200 dB C) 70 dB D) 20 dB E) 50 dB
A) False B) Neither C) The only place in space that you can hear is the moon D) True E) You can always hear no matter where you are
A) 100-100,000Hz B) 0-100Hz C) A mouse squeak to a lion's roar D) 50-50,000Hz E) 20-20,000Hz
A) a softer sound B) a higher pitch C) a louder sound D) a lower pitch
A) parallel to the source B) in a straight line C) at right angles with the source D) all directions
A) determined between two consecutive crests or troughs B) determined by how many particles move side to side C) determined by how loud it is D) determined between two consecutive compressions or rarefractions
A) sonic the hedgehog B) ultrasonic C) hydrasonic D) infrasonic
A) sonic the hedgehog B) hydrasonic C) ultrasonic D) infrasonic
A) all of the above B) bats C) elephants D) ultrasound machine
A) all of these B) bats C) whales D) ultrasound machine
A) starts, stops B) decreases, increases C) increases, decreases D) stops, restarts
A) No echos at all B) Echo Detection C) Echo Reverberation D) Echo Location
A) amplitude B) hearing sensitivity C) frequency D) wavelength
A) 340 m/s B) 40 km/h C) 3 m/s D) 10 km/h
A) jet motor B) intense road traffic C) calm classroom D) rock music concert
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