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