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