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