| What is the formula for finding the momentum of an object | mass x velocity |
| Momentum of an object is defined as | the product of the mass of the object and its velocity |
| What is the I unit for momentum | kg m s^-1 |
| Why is momentum a vector quantity? | because it is a product of a vector quantity (velocity) and a scalar quantity (mass) |
| What does the principle of conservation of momentum state? | That within a closed system, total momentum in any direction is constant |
| Give an example of inelastic collisions | When 2 objects collide, they may crumple and deform. Kinetic energy may disappear completely as they come to a halt. |
| Give an example of perfectly elastic collisions | When 2 objects collide, they may crumple and deform or they may spring apart, retaining all off their kinetic energy |
| Is momentum always conserved in all collisions | Yes |
| Define forces | Forces are interactions between bodies and that they change the motion of the body that they act on. |
| What is Newton's first law of motion in terms of momentum | Momentum of an object remains the same unless the object experiences an external force |
| A statement of newton's second law is, in terms of momentum | The resultant force acting on an object is directly proportional to the rate of change of the linear momentum of the object |
| Newton's third law of motion in terms of momentum is? | When 2 bodies interact, the forces they exert on each other are equal and opposite |
