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