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