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