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