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