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