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