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