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