## Science Worksheets and Study Guides Seventh Grade. Work and machines

### The resources above correspond to the standards listed below:

#### Missouri Standards

MO.2. Properties and Principals of Force and Motion
2.2. Forces affect motion
2.2.F. Work transfers energy into and out of a mechanical system
2.2.F.a. Scope and Sequence - Force, Motion, and Work: Recognize examples of work being done on an object (force applied and distance moved in the direction of the applied force) with and without the use of simple machines
2.2.F.b. Scope and Sequence - Force, Motion, and Work: Calculate the amount of work done when a force is applied to an object over a distance W = f x d
2.2.F.c. Scope and Sequence - Force, Motion, and Work: Explain how simple machines affect the amount of effort force, distance through which a force is applied, and/or direction of force while doing work
2.2.F.d. Scope and Sequence - Force, Motion, and Work: Recognize the amount of work output is never greater than the amount of work input, with or without the use of a simple machine
2.2.F.e. Scope and Sequence - Force, Motion, and Work: Evaluate simple machine designs to determine which design requires the least amount of effort force and explain why