link to Phet chemistry simulation

on a sheet of paper, answer the below questions, include the names of group members and identify the recorder.

__topic(s)__: vector addition

**questions** [9 points; 3 points / question]

the red arrows represents a vector and has two parts - the head (i.e. arrowhead) and its tail (i.e. not the arrowhead; the opposite end of the vector). put your cursor on the arrowhead to change the vector's length or direction. to move a vector, put your cursor on its tail and drag it. grab 2 vectors & select: Show sum.

1. orient the 2 vectors so that they are both facing in the

samedirection and the head of a vector is near the tail of the other vector. change the length of a vector. relate the length and directions of both vectors and its sum.2. orient the 2 vectors so that they are both facing in the

oppositedirection and the vectors are parrallel to each other and the head of a vector aligns with the tail of the other vector. change the length of a vector. relate the length and directions of both vectors and its sum.3. orient the 2 vectors so that the tail of a vector is next to the head of another vector, where the vectors are perpendicular to each other. change the length of a vector. relate the length and directions of both vectors and its sum.

you will be using the concept of vector addition in the next unit to determine if a compound is a polar or nonpolar compound.