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