Learning with Lyrics! on Instagram: "How do car jacks really work? 🚗🤔 Floor jacks utilize hydraulic power based on Pascal's principle, which states that pressure applied to a confined fluid is transmitted equally in all directions. By pumping a handle, you force hydraulic fluid through a check valve into a large cylinder, which pushes a main piston upward to lift the load! #science #physics #engineering #engineer #mechanic #car #stem #knowledge"