Projectile Motion & Energy for Grade 9

Range = The maximum horizontal distance traveled by the projectile Height = The maximum vertical distance reached by the projectile above its initial height Time of Flight = The time taken by the projectile to reach the ground from its maximum height Apex = The highest point reached by the projectile

Kinetic Energy = Energy of motion Potential Energy = Energy stored in an object due to its position or state Thermal Energy = Energy of heat Electrical Energy = Energy associated with the movement of charged particles

mgh = Potential Energy (1/2)mv^2 = Kinetic Energy mgh + (1/2)mv^2 = Total Mechanical Energy v = u + at = Equation of motion

<p>g = m/s^2 h = meters v = m/s t = seconds</p> Signup and view all the answers

<p>A ball rolling down a hill = Potential Energy → Kinetic Energy A compressed spring = Kinetic Energy → Potential Energy A falling object = Potential Energy → Kinetic Energy A spinning wheel = Kinetic Energy → Thermal Energy</p> Signup and view all the answers