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