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