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