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