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