If we heat one end of metallic rod, the other end gets hot. The method of heat transfer is_____.
A. Conduction
B. Convection
C. Radiation
D. None of these
Which of the following is NOT a method of heat transfer?
A. Conduction
B. Convection
C. Radiation
D. All of the above » Read More…
The device used to measure movements of the heart is_____.
A. Cardiograph
B. Seismograph
C. Hydrometer
D. Hygrometer
Sound waves from a loudspeaker are caused by_____.
A. frequency
B. vibrations
C. pitch
D. amplitude
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