A) reaction force B) mechanical Wave C) thermal energy D) impulse
A) the energy of distant stars B) a vacuum C) the high energy of the Sun D) artificial lights
A) ultraviolet light B) microwaves C) visible light D) radio waves
A) False B) True
A) longitidunal wave B) vibrational wave C) transverse Wave D) thermal wave
A) node B) transverse wave C) longitudinal wave D) interference wave
A) light waves B) water waves C) seismic waves D) sound waves
A) sound waves B) water waves
A) red B) blue C) green D) yellow E) violet
A) violet B) blue C) green D) red E) yellow
A) gamma rays B) radio waves C) ultraviolet light D) infrared light
A) gamma rays B) radio waves C) x-rays D) ultraviolet light
A) electromagnetic waves B) mechanical waves C) when the queen greets her subjects while cleaning
A) black light B) a gross brown colour C) a path to lucky charms D) white light
A) x-rays B) ultraviolet light C) gamma rays D) radio waves
A) All of these are correct B) Waves C) Vibrations D) Energy E) Captured in our Ears
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 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) Velocity B) Intensity C) Amplitude D) Frequency E) Hertz
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) Amplitude C) Speed D) It does not have a relation E) Frequency
A) 100 dB B) 50 dB C) 200 dB D) 20 dB E) 70 dB
A) The only place in space that you can hear is the moon B) Neither C) True D) You can always hear no matter where you are E) False
A) 50-50,000Hz B) 20-20,000Hz C) 0-100Hz D) 100-100,000Hz E) A mouse squeak to a lion's roar
A) a higher pitch B) a softer sound C) a louder 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 by how many particles move side to side D) determined between two consecutive compressions or rarefractions
A) sonic the hedgehog B) ultrasonic C) hydrasonic D) infrasonic
A) sonic the hedgehog B) infrasonic C) ultrasonic D) hydrasonic
A) ultrasound machine B) all of the above C) bats D) elephants
A) whales B) all of these C) bats D) ultrasound machine
A) decreases, increases B) starts, stops C) stops, restarts D) increases, decreases
A) Echo Detection B) No echos at all C) Echo Location D) Echo Reverberation
A) frequency B) wavelength C) amplitude D) hearing sensitivity
A) 40 km/h B) 10 km/h C) 3 m/s D) 340 m/s
A) jet motor B) intense road traffic C) rock music concert D) calm classroom
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