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