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