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