Electronics Quiz - Physics Quiz - Science Quiz

• Isotope
• Iions
• Elements
• Compounds

74. The speed of sound in air depends on

• Air temperature
• Frequency of the sound
• Period of the wave
• Wavelength of the wave

75. Which is not a transverse wave?

• X-rays
• Waves in water
• Vibration of a guitar string
• Sound

76. One Hertz is the same as

• 1 m/s
• 1 second
• An inverse second
• A joule/second

77. The Hertz was named after

• Stalin Hertz
• Johan Hertz
• Uthger Hertz
• Henreich Hertz
   

78. The data bus carries to memory a digital code representing

• the instruction address and the data address
• only the instruction address
• only the data address
• none of the above

79. How fast does a radio wave travel through space?

• At the speed of light
• At the speed of sound
• Its speed is inversely proportional to its wavelength
• Its speed increases as the frequency increases

80. A piece of glass which has been heated to a high temperature is left to cool. If the glass cracks, it will most likely be because of

• low thermal conductivity of glass
• high thermal conductivity of glass
• low specific heat capacity of glass
• high specific heat capacity of glass