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