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