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