Vocabulary # 2 ( Energy and Work)

Definitions

1. potential energy: the energy stored in an object or material
2. gravitational potential energy: the potential energy of an object located above the ground
3. kinetic energy: the energy of a moving object
4. work: force applied to an object times the distance the object moves

Sentences and illustration

1. Potential energy exists when there is a force that tends to pull an object back toward some lower energy position.

2. The greater the object's height and weight, the more gravitational potential energy it gains.

3. A moving object has energy due to its motion.

4. Scientists say that work is applying force to an object to move it trough a certain distance.