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