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