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