Grade 8 orientation day - Physics Demonstrations hosted by grade 11 physics students! Great work!
Today we are going to learn about how Newton's 2nd Law relates to the concept of crumple zones and safety features and sports.
Today is a work period to complete the Newton's 2nd Law package and all problems in it. There is also a review assignment for the upcoming quiz on Thursday.
There is a little more to Newton's Second Law than we originally stated. It turns out that the forces acting on the object must be external, and unbalanced. So, in reality it is the NET Force (or SUM of the Forces) acting on a mass, m, that cause it to acceleration. two important cases...F = ma (Force = mass x acceleration) Newton's Second Law describes a universal relationship between the external, unbalanced force (F) acting on an object, the acceleration (a) of the object, and the mass (m) of the object.
Today's lesson on on Newton's First Law - Inertia. The lesson pages, powerpoint and videos were posted 2 days ago. Please refer back to them. what is inertia?Inertia is the tendency of an object to maintain its state of motion unless acted upon by an external, unbalanced force. Some might have heard it stated as "objects at rest tend to stay at rest, objects in motion tend to stay in motion." This is a slightly limited, and simplified statement of the law. Mass as a measure of inertiaThere is no numerical measure for the inertia of an object; however it can be said that mass is a measure of inertia. This means
Dynamics - the study of forces and how they cause motion. In this unit we will investigate and learn about Newton's 3 Laws and their application to solving dynamics problems. The concepts of friction, terminal velocity, action-reaction forces, inertia, parkour, base jumping, crumple zones, etc. Newton's First Law - Inertia
|
CategoriesArchives
June 2015
Christopher BraunGRADE 11 PHYSICS |