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