Across
- 1. a short, slender, sharp-pointed metal pin with a raised helical thread running around it and a slotted head, used to join things together by being rotated
- 3. one of the six basic types of machines of which all other machines are composed
- 6. a sloping ramp up which heavy loads can be raised by ropes or chains.
- 9. a tool containing one or more parts that uses energy to perform an intended action they are usually powered by mechanical, chemical, thermal, or electrical means, and are often motorized.
- 12. the energy that an object has because of the position, shape, or condition of the object
- 14. a rigid bar resting on a pivot, used to help move a heavy or firmly fixed load with one end when pressure is applied to the other.
- 15. the transfer of energy from one object to another, especially in order to make the second object move in a certain direction.
- 16. the SI unit of work or energy, equal to the work done by a force of one newton when its point of application moves one meter in the direction of action of the force
Down
- 2. a simple lifting machine consisting of a rope which unwinds from a wheel on to a cylindrical drum or shaft joined to the wheel to provide mechanical advantage.
- 4. wheel with a grooved rim around which a cord passes. It acts to change the direction of a force applied to the cord and is chiefly used to raise heavy weights
- 5. is a machine made up of two or more simple machines
- 7. a change in the identity or characteristics of an atomic nucleus that results when it is bombarded with an energetic particle, as in fission, fusion, or radioactive decay.
- 8. the energy of a moving object due to the object's motion
- 10. the capacity to do work
- 11. is the rate at which work is performed or energy is converted.
- 13. a piece of wood, metal, or some other material having one thick end and tapering to a thin edge, that is driven between two objects or parts of an object to secure or separate them