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