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