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