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