9. Pre-listening: match the English words and phrases with their Ukrainian equivalents:
| 1. turning moment | a) ричаг |
| 2. pivot | b) обертатися |
| 3. force | c) гаєчний ключ |
| 4. fulcrum | d) вісь обертання |
| 5. leverage | e) Cила |
| 6. revolve | f) точка обертання |
| 7. spanner | g) точка опори |
10. Listen to the text and answer the following questions:
1. What does the turning moment depend on?
2. What is turning moment equal to?
3. What advantage does a longer spanner offer in loosening a tight nut?
4. What is the formula for calculating the moment of a force?
5. Why is it sometimes difficult to apply a force at right angles in a motor car engine?
6. Why the handle of a door is at the edge?