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