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