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