Energy & Work

What is the formula for work done?

Work = Force × Distance (W = Fd)

What is the formula for kinetic energy?

KE = ½mv² (half mass times velocity squared)

What is the formula for gravitational potential energy?

PE = mgh (mass × gravity × height)

Calculate: what is the kinetic energy of a 2 kg object moving at 3 m/s?

9 joules

Calculate: what is the potential energy of a 5 kg object held 4 m above the ground? (use g = 10 m/s²)

200 joules