Table of contents

0. Math Review31m
- Math Review
  31m
1. Intro to Physics Units1h 29m
2. 1D Motion / Kinematics3h 56m
3. Vectors2h 43m
4. 2D Kinematics1h 42m
5. Projectile Motion3h 6m
6. Intro to Forces (Dynamics)3h 22m
7. Friction, Inclines, Systems2h 44m
8. Centripetal Forces & Gravitation7h 26m
9. Work & Energy1h 59m
10. Conservation of Energy2h 54m
11. Momentum & Impulse3h 40m
12. Rotational Kinematics2h 59m
13. Rotational Inertia & Energy7h 4m
14. Torque & Rotational Dynamics2h 5m
15. Rotational Equilibrium3h 39m
16. Angular Momentum3h 6m
17. Periodic Motion2h 9m
18. Waves & Sound3h 40m
19. Fluid Mechanics4h 27m
20. Heat and Temperature3h 7m
21. Kinetic Theory of Ideal Gases1h 50m
22. The First Law of Thermodynamics1h 26m
23. The Second Law of Thermodynamics3h 11m
24. Electric Force & Field; Gauss' Law3h 42m
25. Electric Potential1h 51m
26. Capacitors & Dielectrics2h 2m
27. Resistors & DC Circuits3h 8m
28. Magnetic Fields and Forces2h 23m
29. Sources of Magnetic Field2h 30m
30. Induction and Inductance3h 38m
31. Alternating Current2h 37m
32. Electromagnetic Waves2h 14m
33. Geometric Optics2h 57m
34. Wave Optics1h 15m
35. Special Relativity2h 10m

9. Work & Energy

Intro to Energy & Kinetic Energy

Physics

9. Work & Energy

Intro to Energy & Kinetic Energy

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Multiple Choice

What type of energy transformation occurs when a light bulb is turned on?

Chemical energy to thermal energy

Nuclear energy to electrical energy

Electrical energy to light energy

Mechanical energy to sound energy

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Verified step by step guidance

Begin by understanding the function of a light bulb. A light bulb is designed to convert electrical energy into light energy, which is the primary purpose of its operation.

Consider the source of energy for the light bulb. Typically, a light bulb is powered by electrical energy supplied from a power source, such as a battery or the electrical grid.

Recognize the process of energy transformation. When the light bulb is turned on, electrical energy flows through the filament or LED, causing it to emit light. This is the transformation from electrical energy to light energy.

Note that during this transformation, some electrical energy is also converted into thermal energy due to resistance in the filament or LED, which is why light bulbs can become warm when in use.

Summarize the energy transformation: The primary transformation occurring when a light bulb is turned on is from electrical energy to light energy, with a secondary conversion to thermal energy.