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