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