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