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