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