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