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