Jc1 H2 Physics Promo Papers |top| [NEW]

(a) Calculate speed at lowest point. (3) (b) Find speed at the top if mechanical energy is conserved. (4) (c) Determine tension at the top. (2) (d) If the string can only withstand 15 N, find the maximum speed at the lowest point before breaking. (3)

The "Long Question" at the end of the paper usually involves a weird scenario you’ve never seen before—like the physics of a bungee jump or a specific sensor. Don't panic. These are designed to test if you can apply basic principles to unfamiliar contexts. Break it down: What are the units? What is the gradient of that graph representing? 4. Strategy for the Grind jc1 h2 physics promo papers

Sketch how gravitational force ( F ) varies with distance ( r ) from the center of the Earth, including inside the Earth (assuming uniform density). Why students fail: They think it's always inverse square. Solution: (a) Calculate speed at lowest point