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