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