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4th Module 5 Lesson 1
| Questions |
Answers |
| the ability to do work |
energy |
| force that results from interaction of 2 objects in contact with each other |
contact force |
| force between surfaces that slows objects or stops them from moving |
friction |
| the distance an object moves in an amount of time |
speed |
| force that occurs without objects touching |
noncontact force |
| the speed and direction of an object |
velocity |
| a noncontact force that acts over a distance and pulls all objects toward each other |
gravity |