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