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