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