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