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