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