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