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