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