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