Across
- 3. Pressure is the amount of ___ exerted in an area.
- 8. Give the speed of light in a vacuum.
- 11. The unit of pressure is ___.
- 12. What does a magnifying glass look like?
- 14. Magnetic domains are areas where the ___ magnets show to the same direction.
Down
- 1. A light beam ___ in a straight line.
- 2. The size of an atom is 0,1___.
- 4. The molecules of a ___ are packed together.
- 5. The actions of a force are: change of shape, velocity and ___.
- 6. An electron is the ___ known negative charge.
- 7. A ___ is a physical property where directions are important.
- 8. What's the colour of water?
- 9. Every action has an equal and ____ reaction.
- 10. 2 ___ colours mixed becomes white light.
- 13. The ___ is the minimum distance in which an eye can focus on an object.