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