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