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