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