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