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