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