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