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