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