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