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