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