A stationary pollen grain suspended in water is hit by a fast-moving water molecule.
Which row in the table correctly describes the motion of the pollen grain and of the water molecule after the collision?
| Pollen grain | Water molecule | |
|---|---|---|
| A | remains stationary | rebounds |
| B | remains stationary | stops |
| C | moves | stops |
| D | moves | rebounds |
Row A
Row B
Row C
Row D
151 exam-style questions on CIE IGCSE Physics 2.1.2a Particle structure and motion in solids, liquids and gases. Each one has a worked solution and a mark scheme showing where the marks go.