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Physics Quiz Physics Quiz 1. What is the SI unit of force? Joule Newton Watt Pascal 2. Which of the following is a vector quantity? Speed Distance Velocity Mass 3. What is the formula for kinetic energy? mgh 1/2 mv^2 Fd Pt 4. What is the speed of light in a vacuum? 3.0 x 10^5 m/s 3.0 x 10^8 m/s 3.0 x 10^10 m/s 3.0 x 10^12 m/s Submit Quiz