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