A) thermal energy B) reaction force C) mechanical Wave D) impulse
A) the high energy of the Sun B) a vacuum C) artificial lights D) the energy of distant stars
A) ultraviolet light B) visible light C) microwaves D) radio waves
A) True B) False
A) longitidunal wave B) thermal wave C) transverse Wave D) vibrational 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) violet B) red C) green D) yellow E) blue
A) green B) yellow C) violet D) blue E) red
A) infrared light B) ultraviolet light C) radio waves D) gamma rays
A) gamma rays B) x-rays C) radio waves D) ultraviolet light
A) electromagnetic waves B) when the queen greets her subjects while cleaning C) mechanical waves
A) a path to lucky charms B) black light C) a gross brown colour D) white light
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 moving like the ripples in a pond from a rock B) There is a rainbow present in the sky. C) A moving object is emitting sound continuously. D) The waves are really distorted in the front where the sound is and not in the back after the object moves away
A) Solids B) Space C) Gases D) Liquids
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) Frequency B) Amplitude C) Intensity D) Velocity E) Hertz
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) Frequency B) It does not have a relation C) Amplitude D) Speed E) Decibels
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) 100-100,000Hz B) 50-50,000Hz C) 0-100Hz D) A mouse squeak to a lion's roar E) 20-20,000Hz
A) a higher pitch B) a lower pitch C) a softer sound D) a louder sound
A) at right angles with the source B) in a straight line C) all directions D) parallel to the source
A) determined by how many particles move side to side B) determined between two consecutive crests or troughs C) determined by how loud it is D) determined between two consecutive compressions or rarefractions
A) ultrasonic B) hydrasonic C) sonic the hedgehog D) infrasonic
A) infrasonic B) ultrasonic C) hydrasonic D) sonic the hedgehog
A) elephants B) ultrasound machine C) all of the above D) bats
A) whales B) bats C) ultrasound machine D) all of these
A) starts, stops B) increases, decreases C) stops, restarts D) decreases, increases
A) Echo Location B) Echo Reverberation C) Echo Detection D) No echos at all
A) hearing sensitivity B) wavelength C) amplitude D) frequency
A) 3 m/s B) 340 m/s C) 40 km/h D) 10 km/h
A) intense road traffic B) rock music concert C) calm classroom D) jet motor
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