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