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