Hello!
Today we learnt about Energy and its Transformations and stuff during Physics. So basically...

-The law of conservation of energy states that energy cannot be created or destroyed. *TAKE NOTE!!!*

-Forms of Energy
Potential Energy | Heat Energy | Light energy | Kinetic Energy | Sound Energy | Electrical Energy
*Potential Energy (Chemical Potential Energy, Gravitational Potential Energy, Elastic Potential Energy)

-Energy Transformations
For example...
When we switch on the torchlight,
Chemical Potential Energy (from the batteries) → Electrical Energy → Light energy + Heat energy

Okay I'm going to stop here because I forgot to bring back my textbook and I can't remember what else we learnt SPECIFICALLY. So don't misunderstand me. I was paying attention in class. :)

The Moment of a force is a measure of its tendency to cause a body to rotate about a specific point or axis. This is different from the tendency for a body to move, or translate, in the direction of the force. In order for a moment to develop, the force must act upon the body in such a manner that the body would begin to twist. This occurs every time a force is applied so that it does not pass through the centroid of the body. A moment is due to a force not having an equal and opposite force directly along it's line of action.

Imagine two people pushing on a door at the doorknob from opposite sides. If both of them are pushing with an equal force then there is a state of equilibrium. If one of them would suddenly jump back from the door, the push of the other person would no longer have any opposition and the door would swing away. The person who was still pushing on the door created a moment.

Hello!
Today we learnt about Energy and its Transformations and stuff during Physics. So basically...

-The law of conservation of energy states that energy cannot be created or destroyed. *TAKE NOTE!!!*

-Forms of Energy
Potential Energy | Heat Energy | Light energy | Kinetic Energy | Sound Energy | Electrical Energy
*Potential Energy (Chemical Potential Energy, Gravitational Potential Energy, Elastic Potential Energy)

-Energy Transformations
For example...
When we switch on the torchlight,
Chemical Potential Energy (from the batteries) → Electrical Energy → Light energy + Heat energy

Okay I'm going to stop here because I forgot to bring back my textbook and I can't remember what else we learnt SPECIFICALLY. So don't misunderstand me. I was paying attention in class. :)

The Moment of a force is a measure of its tendency to cause a body to rotate about a specific point or axis. This is different from the tendency for a body to move, or translate, in the direction of the force. In order for a moment to develop, the force must act upon the body in such a manner that the body would begin to twist. This occurs every time a force is applied so that it does not pass through the centroid of the body. A moment is due to a force not having an equal and opposite force directly along it's line of action.

Imagine two people pushing on a door at the doorknob from opposite sides. If both of them are pushing with an equal force then there is a state of equilibrium. If one of them would suddenly jump back from the door, the push of the other person would no longer have any opposition and the door would swing away. The person who was still pushing on the door created a moment.