Practice Written Test Questions: https://sites.google.com/view/privatepilotgroundschool/home
It might be a good idea to know how the instruments you look at when flying actually work. This video explains pitot-static instruments and the compass. Look for part 2 for the rest of the flight instruments.
Useful links:
https://t.ly/vf1S
https://bit.ly/3ySNzeT
Most of the pictures in this video were stolen from Pilot's Handbook of Aeronautical Knowledge.
00:00 Intro
00:45 Compass
03:17 Pitot-Static Instruments
03:55 Altimeter
06:52 Vertical Speed Indicator (VSI)
07:45 Airspeed Indicator (and V-speeds)
11:40 5 Critical Speeds To Know
12:31 Summary