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