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