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