Energy resources and Energy transfer 2.pptx

Energy resources and transfer

1. Topic 3: Energy resources and energy transfers b) Energy transfers Lesson tittle: Radiation Reducing unwanted energy resources c) Work and power Lesson title: Work and energy transfer Kinetic energy

2. JIYAS SHOUKATH Work, GPE, and KE

3. 2 Introduction to Work Fundamental Concept of Work in Physics Work done is defined as the energy transfer occurring when a force moves an object over a distance. No movement means no work, despite applied force.

4. Defining Work Done

5. 5 Gravitational Potential Energy Understanding Energy in a Gravitational Field

6. The greater the mass, the more gravitational potential energy an object can store. Mass Increased height results in higher gravitational potential energy , as energy depends on position relative to ground. Height The strength of gravity influences GPE; stronger gravitational fields increase energy stored in objects. Gravitational Field Strength Factors Affecting GPE

7. 7 Kinetic Energy Understanding the Energy of Motion

8. Kinetic Energy Equation The Kinetic Energy (KE) of an object is calculated using the formula KE = ½ × m × v². This demonstrates how an object's speed significantly influences its energy, particularly as velocity increases.

9. 10 Energy Changes in a Rollercoaster Understanding GPE and KE Dynamics As a rollercoaster climbs to its peak, it reaches maximum gravitational potential energy (GPE). During the descent, this energy transforms into kinetic energy (KE), reaching its maximum at the bottom.

10. 10 Energy Changes in a Rollercoaster

11. 11 Energy Losses Explained Understanding Friction and Air Resistance Friction and air resistance transform kinetic energy into heat and sound, resulting in energy losses during motion. These losses affect efficiency and energy conservation in many real-world scenarios.