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