Flashcards in Chapter 6 Vocabulary Deck (19)
What is the rate at which work is done?
What is the ability to do work?
What is energy due to position?
What is the energy of motion?
What is energy due to an objects elevated position?
Gravitational Potential Energy
What is work= change in kinetic energy?
Work Energy Therom
What is energy cannot be created or destroyed. It can be transformed or transferred from one form to another but the total amount of energy never changes?
Law of Conservation of Energy
What is a device that can multiply forces or change their direction?
What contains an effort arm, resistance arm, and fulcrum?
What is the point on a lever that does not move?
What is the portion of the lever where you apply force?
What is the portion of the lever that is applying a force to move an object?
What has an effort force at one end, resistance force at the other, and fulcrum in the middle?
Ex. Hammer, see-saw
First Class Lever
What has an effort force on one end, resistance force in the middle, and fulcrum at the other end?
Second Class Lever
What has an effort force in the middle, resistance force on one end, and fulcrum on the other end?
Ex. Mom, broom
Third Class Lever
What is a special kind of lever that has a wheel with a groove in it?
What describes how much work a machine does? (Cannot exceed 100%)
What is the unit for work?