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