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