## Lesson 1: Work Done By a Constant Force:

**Hook:**

Ask students to move their book or an object they have and write down the direction

of the applying force and direction of moving objects. Ask students if they can find a way to apply the force in a way that object move perpendicular to the

direction of applying force. students can work in group of two.

source:http://www.physics.ucla.edu/k-6connection/K6images/treework.gif

**Action:**

provide students with real world problem and ask them questions such as: what is the work? And what does the work depend on? .students will work on the questions in groups of 4 or 5 and then we will discuss it as whole class.

**Debrief:**

provide students with real world problem and ask them to solve the problem.

students can work in group of 2.then we will discuss the problem as whole class.

Ask student for exit card: write down how we can calculate the work done by a

constant force on an object. You can use an example ?

## Other Ideas:

the video about the applying force