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