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