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