Work and Energy

2. / is the rate at which work is performed or energy is converted.
6. Reaction / 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.
7. Energy / the energy of a moving object due to the object's motion
8. Plane / a sloping ramp up which heavy loads can be raised by ropes or chains.
9. Machines / is a machine made up of two or more simple machines
12. / the capacity to do work
13. & Axle / 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.
14. / 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
15. / 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

1. Machines / one of the six basic types of machines of which all other machines are composed
3. / the transfer of energy from one object to another, especially in order to make the second object move in a certain direction.
4. Energy / the energy that an object has because of the position, shape, or condition of the object
5. / 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.
10. / 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
11. / 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.
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