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