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