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