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