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