Unit 5 - Momentum
Types of Collisions:
When it comes to momentum, there are 4 types of collisions. Elastic, Inelastic, Explosions, and Completely Inelastic. Elastic collisions occur when the object separate after impact. Explosions or Super Elastic Collisions are very similar and occur when the objects separate due to a force between them. Inelastic collisions occur when objects join together and continue at the same speed after impact. Completely inelastic collisions are when objects connect and essentially join becoming one object with equal speed and acceleration.
When it comes to momentum, there are 4 types of collisions. Elastic, Inelastic, Explosions, and Completely Inelastic. Elastic collisions occur when the object separate after impact. Explosions or Super Elastic Collisions are very similar and occur when the objects separate due to a force between them. Inelastic collisions occur when objects join together and continue at the same speed after impact. Completely inelastic collisions are when objects connect and essentially join becoming one object with equal speed and acceleration.
Impulse:
Impulse is the change in momentum over a set time. Impulse is written as J and its equation is J=F*ꕔt. Impulse is used to signify the change in momentum during a collision. It is is measured in kg*m/s. It can be found when looking under the curve of a momentum time graph.
Impulse is the change in momentum over a set time. Impulse is written as J and its equation is J=F*ꕔt. Impulse is used to signify the change in momentum during a collision. It is is measured in kg*m/s. It can be found when looking under the curve of a momentum time graph.
Momentum:
The equation for momentum is p=m*v. When working with momentum, we mainly use 2 charts. Momentum time-graphs show the momentum of an object change over a set amount of tie. The area under the graph is the systems impulse. We also Momentum bar chart. These are used to find the change in momentum before and after a collision or explosion as well as the negative or positive effect on the momentum from the explosion or collision. |
Conservation of Momentum:
Conservation of Momentum is the law that states that momentum is conserved within a system during a collision. This is only true when no external impulse is applied to the system. This can also be applied tot he center of mass of a system. The momentum at the center of mass of a system will remain constant as longer as there is no external force.
Conservation of Momentum is the law that states that momentum is conserved within a system during a collision. This is only true when no external impulse is applied to the system. This can also be applied tot he center of mass of a system. The momentum at the center of mass of a system will remain constant as longer as there is no external force.
Momentum, Energy, Forces, and Kinematics:
Momentum is related to energy, forces, and kinematics in multiple ways. All are used to find and solve for different parts of a momentum. Momentum is derived from Kinematics and forces. Its equation is p=m*v which are derived from the basics of forces and kinematics. Energy can be used to find momentum and helps to know which type of collision it is as well as its kinetic energy conservation.
Momentum is related to energy, forces, and kinematics in multiple ways. All are used to find and solve for different parts of a momentum. Momentum is derived from Kinematics and forces. Its equation is p=m*v which are derived from the basics of forces and kinematics. Energy can be used to find momentum and helps to know which type of collision it is as well as its kinetic energy conservation.
Sources:
Mr.Frost OneNote
Mr.Frost OneNote