A) mechanical Wave B) reaction force C) impulse D) thermal energy
A) artificial lights B) a vacuum C) the energy of distant stars D) the high energy of the Sun
A) ultraviolet light B) microwaves C) radio waves D) visible light
A) True B) False
A) thermal wave B) vibrational wave C) transverse Wave D) longitidunal wave
A) node B) transverse wave C) longitudinal wave D) interference wave
A) seismic waves B) sound waves C) light waves D) water waves
A) sound waves B) water waves
A) blue B) yellow C) green D) violet E) red
A) green B) violet C) yellow D) red E) blue
A) gamma rays B) ultraviolet light C) radio waves D) infrared light
A) radio waves B) ultraviolet light C) x-rays D) gamma rays
A) when the queen greets her subjects while cleaning B) electromagnetic waves C) mechanical waves
A) a gross brown colour B) a path to lucky charms C) white light D) black light
A) x-rays B) radio waves C) gamma rays D) ultraviolet light
A) Energy B) Waves C) Vibrations D) Captured in our Ears E) All of these are correct
A) A moving object is emitting sound continuously. B) The waves are moving like the ripples in a pond from a rock C) The waves are really distorted in the front where the sound is and not in the back after the object moves away D) There is a rainbow present in the sky.
A) Gases B) Liquids C) Solids D) Space
A) Sound bouncing back to you off a solid object B) A figment of your imagination C) Sound that bounces in all directions D) Sound that DOES NOT bounce back to you
A) Intensity B) Amplitude C) Velocity D) Hertz E) Frequency
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) Decibels B) Frequency C) It does not have a relation D) Amplitude E) Speed
A) 200 dB B) 50 dB C) 20 dB D) 100 dB E) 70 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) 20-20,000Hz C) 0-100Hz D) A mouse squeak to a lion's roar E) 50-50,000Hz
A) a louder sound B) a higher pitch C) a lower pitch D) a softer sound
A) all directions B) at right angles with the source 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 many particles move side to side D) determined by how loud it is
A) ultrasonic B) sonic the hedgehog C) infrasonic D) hydrasonic
A) hydrasonic B) sonic the hedgehog C) ultrasonic D) infrasonic
A) all of the above B) ultrasound machine C) elephants D) bats
A) all of these B) bats C) ultrasound machine D) whales
A) starts, stops B) increases, decreases C) decreases, increases D) stops, restarts
A) Echo Detection B) Echo Location C) Echo Reverberation D) No echos at all
A) hearing sensitivity B) wavelength C) amplitude D) frequency
A) 340 m/s B) 10 km/h C) 3 m/s D) 40 km/h
A) intense road traffic B) calm classroom C) jet motor D) rock music concert
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