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