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