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