A) mechanical Wave B) thermal energy C) impulse D) reaction force
A) a vacuum B) artificial lights C) the energy of distant stars D) the high energy of the Sun
A) ultraviolet light B) microwaves C) visible light D) radio waves
A) False B) True
A) vibrational wave B) longitidunal wave C) thermal wave D) transverse Wave
A) longitudinal wave B) transverse wave C) node D) interference wave
A) light waves B) sound waves C) water waves D) seismic waves
A) sound waves B) water waves
A) yellow B) red C) blue D) violet E) green
A) green B) violet C) yellow D) red E) blue
A) radio waves B) gamma rays C) infrared light D) ultraviolet light
A) gamma rays B) radio waves C) ultraviolet light 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) white light C) a gross brown colour D) black light
A) x-rays B) gamma rays C) radio waves D) ultraviolet light
A) Vibrations B) All of these are correct C) Waves D) Energy E) Captured in our Ears
A) A moving object is emitting sound continuously. B) There is a rainbow present in the sky. C) The waves are really distorted in the front where the sound is and not in the back after the object moves away D) The waves are moving like the ripples in a pond from a rock
A) Solids B) Liquids C) Gases 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) Frequency B) Amplitude C) Velocity D) Hertz E) Intensity
A) The unit of measure that is used to measure wavelength B) The unit of measure used to measure frequency C) The unit of measure used to measure the loudness D) The unit of measure to measure tone quality
A) Decibels B) Frequency C) It does not have a relation D) Speed E) Amplitude
A) 50 dB B) 100 dB C) 200 dB D) 20 dB E) 70 dB
A) You can always hear no matter where you are B) True C) Neither D) The only place in space that you can hear is the moon E) False
A) 50-50,000Hz B) 100-100,000Hz C) A mouse squeak to a lion's roar D) 0-100Hz E) 20-20,000Hz
A) a lower pitch B) a softer sound C) a louder sound D) a higher 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 by how many particles move side to side D) determined between two consecutive compressions or rarefractions
A) infrasonic B) ultrasonic C) sonic the hedgehog D) hydrasonic
A) ultrasonic B) hydrasonic C) sonic the hedgehog D) infrasonic
A) bats B) ultrasound machine C) all of the above D) elephants
A) whales B) ultrasound machine C) all of these D) bats
A) starts, stops B) stops, restarts C) increases, decreases D) decreases, increases
A) No echos at all B) Echo Location C) Echo Reverberation D) Echo Detection
A) wavelength B) frequency C) hearing sensitivity D) amplitude
A) 3 m/s B) 40 km/h C) 340 m/s D) 10 km/h
A) jet motor B) rock music concert C) calm classroom D) intense road traffic
|