# Work Senior High School Class: XI / Semester 1 Created by Dewi Tirtasari Universitas Negeri Jakarta.

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Work Senior High School Class: XI / Semester 1 Created by Dewi Tirtasari Universitas Negeri Jakarta

What is mass?

mass is how much “stuff” a thing contains

What is weight ?

weight refers to the rate at which that amount of stuff is being accelerated towards the earth

Think!! What difference between

What is WORK ? When a force acts upon an object to cause a displacement of the object, it is said that work was done upon the object

The equation of Work Mathematically, work can be expressed by the following equation.

The angle -> Theta (θ)

Keywords of Work Force Displacement The angle

Practice make perfect

Let’s Mention ! several good examples of work that can be observed in everyday life …

Practice make perfect

Summary

Work is done when a force acts upon an object to cause a displacement. Three quantities must be known in order to calculate the amount of work. Those three quantities are force, displacement and the angle between the force and the displacement. Summary

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