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