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