Mention two types of simple machine other than lever. State one difference between potential and kinetic energies.

a) Two types of simple machines other than a lever are:

• An inclined plane
• A pulley

b) One difference between potential and kinetic energies is:

• Potential energy is the energy an object possesses due to its position or state (e.g., height, compression), while kinetic energy is the energy an object possesses due to its motion.