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