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