Energy Movement Engineering Engineering Energy and Work People who _______________ products are called __________________. Engineers often design things to make existing _______________ work _________________ or cost less. Designing involves ________________, imagining, _______________ things out, using __________________ wisely, and ___________________ plans. Energy and Work ___________________ is the ________________ to do _____________. Engineers who study movement use “work” to mean the _____________ of ______________ needed to _______________ a mass from one place to another or to ________________ it in some way. Doing work requires energy.

Kinetic and Potential Energy _______________________ energy is energy of _________________. Objects with kinetic energy can do work. Example: ___________________________________________________________ ______________________ energy is the energy of ________________. ____________________________________________________________ Energy Transfer When objects __________________ energy is____________________ A collision happens when one object hits another

Momentum ________________________ is the quantity of motion and object has Momentum depends on __________ and ________________________ Friction Friction is a force that __________________ motion between two ___________________________ that are touching. Rougher surfaces create more _________________________. Greater force creates more friction. Friction can be lessened with the use of _____________________.