Last week we learned about vectors and I showed you the scale diagram method for solving a vector problem, such as determining the displacement of an object after a journey. The video is a short re-cap of the scale diagram technique.

# vectors

## how to draw scale diagrams

Here is a short video covering the points we discussed when we drew scale diagrams to find displacement vectors.

Vector Scale Diagrams from mr mackenzie on Vimeo.

## remember vectors?

We’ve been dealing with vectors since the very start of the Higher Physics course. Before the holidays, we looked at displacement, velocity and acceleration as vectors. Over the last 2 weeks, we have discussed velocity in the context of projectile motion and looked at the vector nature of forces.

Some of the problem solving tasks we attempted towards the end of last week suggested people were a little rusty on vectors so I have looked out some youtube revision materials to jog the memory.

Sometimes clips go into too much detail for our course or start introducing alternative methods that we have not used in class. To prevent confusion, I’ve suggested how much of each video is relevant for the Higher course.

The first **6 minutes** of this video clip introducing vectors may be helpful.

Watch this one **up to 2:50** for a good review of our June work on displacement.

## answers to hw on vectors and projectiles

Solutions to the hw you handed in today are available in pdf format by clicking the link below.