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