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