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