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