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