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