Question

Which of the following is/are example(s) of physical change?

• A. interconversion between states of matter
• B. breaking a glass
• C. burning of coal
• D. digestion of food

Answer 1

Answer: (A), (B)

The correct options are
A interconversion between states of matter
B breaking a glass

The interconversion between states of matter is a physical change because the change is reversible. Although ice, water and water vapour all look different and display different physical properties, they are all chemically the same substance.
Breaking of glass is a physical change because only the size of the glass changes and no new substances formed after the glass breaks.