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