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