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