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