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