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