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