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