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