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