A) mechanical Wave B) impulse C) thermal energy D) reaction force
A) the energy of distant stars B) artificial lights C) a vacuum D) the high energy of the Sun
A) visible light B) ultraviolet light C) radio waves D) microwaves
A) False B) True
A) transverse Wave B) vibrational wave C) longitidunal wave D) thermal wave
A) interference wave B) node C) longitudinal wave D) transverse wave
A) seismic waves B) sound waves C) water waves D) light waves
A) water waves B) sound waves
A) violet B) yellow C) blue D) red E) green
A) red B) violet C) blue D) green E) yellow
A) infrared light B) radio waves C) gamma rays D) ultraviolet light
A) gamma rays B) x-rays C) ultraviolet light D) radio waves
A) electromagnetic waves B) mechanical waves C) when the queen greets her subjects while cleaning
A) white light B) black light C) a gross brown colour D) a path to lucky charms
A) gamma rays B) radio waves C) x-rays D) ultraviolet light
A) All of these are correct B) Vibrations C) Energy D) Captured in our Ears E) Waves
A) The waves are moving like the ripples in a pond from a rock B) There is a rainbow present in the sky. C) A moving object is emitting sound continuously. D) The waves are really distorted in the front where the sound is and not in the back after the object moves away
A) Solids B) Space C) Gases D) Liquids
A) Sound bouncing back to you off a solid object B) Sound that DOES NOT bounce back to you C) Sound that bounces in all directions D) A figment of your imagination
A) Frequency B) Amplitude C) Intensity D) Hertz E) Velocity
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) Amplitude B) Decibels C) Speed D) It does not have a relation E) Frequency
A) 70 dB B) 20 dB C) 100 dB D) 200 dB E) 50 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) A mouse squeak to a lion's roar B) 100-100,000Hz C) 0-100Hz D) 50-50,000Hz E) 20-20,000Hz
A) a softer sound B) a lower pitch C) a higher pitch D) a louder sound
A) in a straight line B) parallel to the source C) at right angles with the source D) all directions
A) determined by how many particles move side to side B) determined by how loud it is C) determined between two consecutive compressions or rarefractions D) determined between two consecutive crests or troughs
A) sonic the hedgehog B) ultrasonic C) hydrasonic D) infrasonic
A) sonic the hedgehog B) hydrasonic C) ultrasonic D) infrasonic
A) elephants B) ultrasound machine C) bats D) all of the above
A) bats B) whales C) all of these D) ultrasound machine
A) increases, decreases B) starts, stops C) stops, restarts D) decreases, increases
A) Echo Reverberation B) Echo Location C) Echo Detection D) No echos at all
A) amplitude B) wavelength C) frequency D) hearing sensitivity
A) 340 m/s B) 40 km/h C) 3 m/s D) 10 km/h
A) intense road traffic B) calm classroom C) jet motor D) rock music concert
|