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