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