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