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