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