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