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