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