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