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