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