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