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