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