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