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