A) mechanical Wave B) reaction force C) thermal energy 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) radio waves D) visible light
A) False B) True
A) transverse Wave B) longitidunal wave C) thermal wave D) vibrational wave
A) transverse wave B) longitudinal wave C) node D) interference wave
A) seismic waves B) sound waves C) water waves D) light waves
A) sound waves B) water waves
A) yellow B) red C) blue D) green E) violet
A) yellow B) violet C) blue D) red E) green
A) gamma rays B) ultraviolet light C) radio waves D) infrared light
A) ultraviolet light B) x-rays C) gamma rays D) radio waves
A) mechanical waves B) when the queen greets her subjects while cleaning C) electromagnetic waves
A) black light B) white light C) a path to lucky charms D) a gross brown colour
A) x-rays B) ultraviolet light C) gamma rays D) radio waves
A) Energy B) Captured in our Ears C) Waves D) All of these are correct E) Vibrations
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) Solids C) Gases D) Liquids
A) Sound bouncing back to you off a solid object B) A figment of your imagination C) Sound that bounces in all directions D) Sound that DOES NOT bounce back to you
A) Velocity B) Intensity C) Amplitude D) Frequency E) Hertz
A) The unit of measure that is used to measure wavelength B) The unit of measure used to measure frequency C) The unit of measure used to measure the loudness D) The unit of measure to measure tone quality
A) It does not have a relation B) Speed C) Frequency D) Decibels E) Amplitude
A) 50 dB B) 70 dB C) 200 dB D) 100 dB E) 20 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) 0-100Hz D) A mouse squeak to a lion's roar E) 50-50,000Hz
A) a higher pitch B) a softer sound C) a louder sound D) a lower pitch
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 crests or troughs B) determined between two consecutive compressions or rarefractions C) determined by how loud it is D) determined by how many particles move side to side
A) sonic the hedgehog B) hydrasonic C) infrasonic D) ultrasonic
A) ultrasonic B) sonic the hedgehog C) infrasonic D) hydrasonic
A) elephants B) ultrasound machine C) all of the above D) bats
A) ultrasound machine B) whales C) all of these D) bats
A) decreases, increases B) stops, restarts C) increases, decreases D) starts, stops
A) Echo Location B) Echo Detection C) Echo Reverberation D) No echos at all
A) wavelength B) hearing sensitivity C) amplitude D) frequency
A) 340 m/s B) 40 km/h C) 3 m/s D) 10 km/h
A) jet motor B) rock music concert C) calm classroom D) intense road traffic
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