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