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