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