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