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