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