# What is the conservation of energy?

According to the law of conservation of energy, the total amount of energy in a closed system—one that isn't affected by outside forces—will always remain constant.

For illustration, consider a pendulum swinging back and forth. If you ignore air drag and friction, the pendulum will always reach the same height because its height-related gravitational potential energy is directly transformed into kinetic energy, which is determined by velocity.

Unless the pendulum is pushed by another object, its total energy will always stay the same because it is the product of its kinetic energy and gravitational potential energy.

All closed systems can be treated with the same principles.

By signing up, you agree to our Terms of Service and Privacy Policy

The conservation of energy is a fundamental principle in physics that states that the total energy of an isolated system remains constant over time. In other words, energy cannot be created or destroyed, only transferred or converted from one form to another. This principle is based on the law of the conservation of mass-energy, which combines the conservation of mass and the conservation of energy into a single, unified law. The conservation of energy is a cornerstone of many branches of physics, including mechanics, thermodynamics, and electromagnetism, and it has numerous practical applications in engineering, technology, and everyday life.

By signing up, you agree to our Terms of Service and Privacy Policy

The conservation of energy is a fundamental principle in physics stating that the total energy of a closed system remains constant over time. Energy cannot be created or destroyed, but it can only be transformed from one form to another or transferred between objects within the system. This principle is derived from the first law of thermodynamics, which states that the total energy in a system is constant. It applies to all forms of energy, including kinetic energy, potential energy, thermal energy, and electromagnetic energy. The conservation of energy is a cornerstone of modern physics and is used to analyze various phenomena, from simple mechanical systems to complex interactions in the universe.

By signing up, you agree to our Terms of Service and Privacy Policy

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

- A ball with a mass of #256 g# is projected vertically by a spring loaded contraption. The spring in the contraption has a spring constant of #27 (kg)/s^2# and was compressed by #12/4 m# when the ball was released. How high will the ball go?
- What are the six simple machines?
- A balanced lever has two weights on it, the first with mass #3 kg # and the second with mass #24 kg#. If the first weight is # 9 m# from the fulcrum, how far is the second weight from the fulcrum?
- A ball with a mass of #360 g# is projected vertically by a spring loaded contraption. The spring in the contraption has a spring constant of #8 (kg)/s^2# and was compressed by #4/3 m# when the ball was released. How high will the ball go?
- How much work would it take to horizontally accelerate an object with a mass of #4# #kg# to #3# #ms^-1# on a surface with a kinetic friction coefficient of #6#?

- 98% accuracy study help
- Covers math, physics, chemistry, biology, and more
- Step-by-step, in-depth guides
- Readily available 24/7