It really amazing for me to study about the Work and machine. There are 4 topic in work and machine chapter and there are Work, Machine, Simple machines and compound machine. In physical science work doesn’t mean activity involving mental or physical effort done in order to achieve a purpose or result (dictionary.com) but work means the use of force to move an object. So that mean working we need to use the force to move your body to move. So in work we just learning about the how can the we calculate the work and the power of work. After we study about work we study about the Machine. Machine is an A machine is any device that makes work easier by changing a force. I also study about the Easy machine and compound machine. I really excited to study about that topic because in our everyday life we mostly use the machine to work for us to make our life easier. And after we finish that we also I work as a team to create a small simple machine.