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