Why is glass called a supercooled liquid?
Understand the nature of glass.
Negative Work
Can work be negative?
Calculate the packing efficiency of FCC.
A numerical problem on FCC structure.
Power Understanding
Is a powerful machine always doing more work?
Why are ionic solids brittle?
Understand why crystals like NaCl break easily.
Kinetic Energy
Why does doubling speed quadruple kinetic energy?
Distinguish between Schottky and Frenkel defects.
A common exam question.
Potential Energy
Where does potential energy go when a falling object hits the ground?
What is Henry’s Law?
Explain Henry’s Law and give examples.
Work-Energy Theorem
How is work related to change in kinetic energy?
Why is antifreeze used in car radiators?
Relate colligative properties to real life.
Escape Velocity
Why can’t we throw a ball into space?
Calculate molality.
A numerical: 18 g glucose in 500 g water.
Weightlessness
Why do astronauts feel weightless in space?
Why does adding salt to water increase boiling point?
Boiling point elevation explanation.
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