A) thermal energy B) impulse C) reaction force D) mechanical Wave
A) the energy of distant stars B) the high energy of the Sun C) artificial lights D) a vacuum
A) microwaves B) ultraviolet light C) radio waves D) visible light
A) True B) False
A) transverse Wave B) vibrational wave C) thermal wave D) longitidunal wave
A) longitudinal wave B) node C) transverse wave D) interference wave
A) seismic waves B) sound waves C) light waves D) water waves
A) sound waves B) water waves
A) yellow B) green C) violet D) blue E) red
A) yellow B) blue C) red D) violet E) green
A) gamma rays B) radio waves C) infrared light D) ultraviolet light
A) ultraviolet light B) x-rays C) radio waves D) gamma rays
A) mechanical waves B) electromagnetic waves C) when the queen greets her subjects while cleaning
A) a path to lucky charms B) black light C) white light D) a gross brown colour
A) ultraviolet light B) x-rays C) radio waves D) gamma rays
A) All of these are correct B) Waves C) Vibrations D) Captured in our Ears E) Energy
A) The waves are really distorted in the front where the sound is and not in the back after the object moves away B) There is a rainbow present in the sky. C) A moving object is emitting sound continuously. D) The waves are moving like the ripples in a pond from a rock
A) Liquids B) Gases C) Solids D) Space
A) Sound that DOES NOT bounce back to you B) Sound that bounces in all directions C) A figment of your imagination D) Sound bouncing back to you off a solid object
A) Velocity B) Hertz C) Frequency D) Amplitude E) Intensity
A) The unit of measure that is used to measure wavelength B) The unit of measure used to measure the loudness C) The unit of measure used to measure frequency D) The unit of measure to measure tone quality
A) It does not have a relation B) Amplitude C) Decibels D) Speed E) Frequency
A) 50 dB B) 100 dB C) 20 dB D) 70 dB E) 200 dB
A) True B) The only place in space that you can hear is the moon C) False D) You can always hear no matter where you are 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 lower pitch D) a softer sound
A) at right angles with the source B) all directions C) in a straight line D) parallel to the source
A) determined by how many particles move side to side B) determined by how loud it is C) determined between two consecutive crests or troughs D) determined between two consecutive compressions or rarefractions
A) sonic the hedgehog B) infrasonic C) hydrasonic D) ultrasonic
A) ultrasonic B) hydrasonic C) infrasonic D) sonic the hedgehog
A) all of the above B) bats C) elephants D) ultrasound machine
A) ultrasound machine B) bats C) all of these D) whales
A) increases, decreases B) starts, stops C) decreases, increases D) stops, restarts
A) Echo Detection B) Echo Location C) No echos at all D) Echo Reverberation
A) amplitude B) frequency C) hearing sensitivity D) wavelength
A) 10 km/h B) 40 km/h C) 340 m/s D) 3 m/s
A) jet motor B) intense road traffic C) calm classroom D) rock music concert
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