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