Kinetic Energy Vs Gravitational Potential Energy

Kinetic energy is the energy of motion measured in Joules (J).

Gravitational potential energy is the stored energy that relates to distance (go up when distance goes up) measured in Joules (J).

K.E = 0.5 x mass x velocity²

GPE = mass x gravitational field strength (9.8) x height

NB: Mass is measured in kg, velocity is in metres per second, height is in metres ALWAYS

1. What is the kinetic energy when m = 5kg, and v = 2m/s

KE = 0.5 x 5 x 2²

KE = 10J

2. What is the gravitational potential energy when m=10kg, g=9.8, and h=50cm

h = 50cm = 50/100 m = 0.5m

GPE = 10 x 9.8 x 0.5

GPE = 49J