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