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