To check CPU usage. Open the Task Manager (Ctrl + Alt + Del) and then go to Task List. Hit the Performance tab. The screen below should appear showing the CPU usage on your computer. Typically, your processor usage shouldn't go over 50% unless using large applications such as video games or media editing programs.
Many students carry a course load of 15 credits, or approximately 15 hours of class time each week. Doing some simple math indicates that your student should be spending roughly 30 hours of study time and 15 hours in class.
The law on working hours for a teen aged 13-16 says: 1  During term time they can only work a maximum of 12 hours per week. 2  They're not allowed to work after 7pm. 3  During school holidays they are allowed to work 25 hours per week if they are 13-14, and 35 hours per week if they are 15-16. There are also restrictions on how many hours per day - for example they're only allowed to work for 2 hours on a Sunday.