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