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