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