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