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