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