Visualizing Hotness
Trending Questions
Q. Heat is the total kinetic energy of constituent particles of objects.
- True
- False
Q. Molecules of a solid vibrate with larger amplitude at:
- zero temperature
- lower temperature
- higher temperature
- zero pressure
Q. Heat energy transferred in bodies at thermal equilibrium is
- Very high and positive
- Very low and positive
- zero
- negative
Q.
After holding a pack of ice in your hand for some time, you put your hand in water at room temperature. Your hand would now feel ___.
hotter
mildly colder
same as before
strikingly colder
Q. The speed of molecules ___.
- in cold water is more than that of room temperature water
- in hot water is more than that of room temperature water
- in hot water is equal to that of room temperature water
- in hot water is equal to that of cold water
Q.
Kinetic energy of the molecules of a substance increases with increase in__________.
mass
temperature
volume
area
Q. What happens when the temperature of a substance is increased?
- Kinetic energy of the molecules of the substance increases.
- Kinetic energy of the molecules of the substance decreases.
- The amplitude of vibrations of molecules of the substance about their mean position decreases.
- It does not cause any change.
Q. __ is the average kinetic energy of the molecules.
- Heat
- Temperature
- Capillary
- Atom