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