Your HW sheet with questions on EMF and the Wheatstone Bridge is attached. Please hand it in no later than the above date.

# podcast

podcasts go in this category for the feed to iTunes

## deriving the equations of motion

I’ve been looking through the results of the traffic light survey we did at the end of unit 1 of the higher course. The learning outcome that most people were unhappy about was the derivation of the equations of motion.

I put together a handout that outlines where the 3 equations come from, starting with a simple velocity-time graph. Let me know if you think your understanding of this outcome would benefit from the video treatment I have used in your homework solutions.

## equations of motion – projectile motion

How to separate out the horizontal and vertical motion of a projectile and apply the equations of motion.

## equations of motion – combining up & down vertical motion

This is an example showing the importance of adopting a sign convention at the start of your problem.

## equations of motion – final velocity

An example illustrating how to determine the final velocity of an object when initial velocity, acceleration and distance are known.

## equations of motion – initial velocity

This example shows how to find the initial vertical velocity of an object if its maximum height (apex) is known.

## equations of motion example – finding “g”

In this problem, experimental data is used to obtain a value for “g”, acceleration due to gravity.

## Higher HW – gas laws and electric fields

Here is your HW covering the end of unit 1 and the start of unit 2. This exercise is slightly longer (7 questions) so that you won’t have to do any HW over the Christmas holidays. Make sure you hand in your answers no later than Monday 15th December.

## Higher HW for Wed 26th November

Here is your HW on density and pressure. You’ll be happy to hear that it’s a shorter exercise than the last one. Remember to show your working and hand in your HW jotter by next Wednesday (26th) period 5.

## Higher HW questions for Wed 12 November

Here is your homework for next Wednesday (12th November). I have taken these questions from a SQA source to illustrate the various formats used for examination questions at Higher. You should **attempt all 7 questions**.

The first 5 questions are a selection of different styles of multiple choice question. I have chosen questions to test aspects of unit 1 that we have already covered. **You should show all of your working for these questions, do not answer by simply writing a letter A-E**.

The next 2 questions demonstrate the longer exam style. These are representative of the questions you may meet in a NAB or Section B of an exam. Again, show all working.