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