Cheatography

# Energy-Physics 11 Cheat Sheet (DRAFT) by Gifted

Overview of Concepts in the Energy unit of grade 11 physics

This is a draft cheat sheet. It is a work in progress and is not finished yet.

### Kinetic Energy

 Kinetic Energy is the energy possessed by a moving object.
Equation= Ek=½mv2

### Potential Energy

 Potential Energy is the energy of an object due to its height above the ground.
Equation: Ep= m·g·Δh

### Latent Heat

 The total thermal energy absorbed or released when a substance changes state, measured in joules
Q=m·l

### Work

 Mechanical work is the applic­ation of a force on an object that displaces the object in the direction of the force or a component of the force.
W=F·Δd

### Thermal Energy

 Thermal energy is energy due to the movement of particles inside a substa­nce.The more movement, the more thermal energy.
Equation: ̇Q=m·c·ΔT

### Nuclear Energy

 Nuclear Energy is found in the nucleus of an atom and keeps the protons together.

### Law of Conser­vation of Energy

 Energy can neither be created nor destroyed.
ET1=ET2

### Power

 The rate of transf­orming energy or doing work
P=W/T

### Nuclear Fission

 Nuclear Fission occurs when a heavy atom is struck by a nucleus, causing it to break apart into smaller, more stable atoms. By doing this, it releases a lot of energy.

### Decay

 Alpha Decay Helium Particle is emitted. Beta Positive Decay A proton becomes a neutron and a positron and the positron is emitted. Beta Negative Decay A neutron becomes a proton and an electron, and the electron is emitted. Electron capture An electron is capture by an atom, resulting in a proton and electron forming a neutron. Gamma Decay A photon is emitted.

### Nuclear Fusion

 Nuclear Fusion is the process of taking small, stable atoms, and fusing them to create larger, less stable atoms. By doing this, energy is produced. No nuclear waste results from this transf­orm­ation.

### Thermal Energy Transfer

 Thermal energy moves from hotter objects to colder objects. The transfer of thermal energy is known as heat.
QHot=-QCold