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

How is kinetic energy different from potential energy?

Kinetic energy is always greater than potential energy for any object.

Kinetic energy can be converted into mass, while potential energy cannot.

Kinetic energy depends on the temperature of an object, while potential energy does not.

Kinetic energy is the energy of motion, while potential energy is the energy stored due to an object's position or configuration.

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Verified step by step guidance

Understand the definitions: Kinetic energy is the energy an object possesses due to its motion, while potential energy is the energy stored in an object due to its position or configuration.

Identify the key differences: Kinetic energy is associated with the movement of an object, whereas potential energy is related to the position or state of an object in a force field, such as gravitational or elastic fields.

Consider examples: A moving car has kinetic energy due to its velocity, while a book on a shelf has gravitational potential energy due to its height above the ground.

Explore energy conversion: Kinetic energy can be converted into potential energy and vice versa. For example, when a pendulum swings, its energy continuously converts between kinetic and potential forms.

Clarify misconceptions: Kinetic energy is not always greater than potential energy, and both can be converted into other forms of energy, but not directly into mass. Temperature affects kinetic energy at the molecular level, but not potential energy directly.