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