Ib Physics Past Paper May 2012

The main objective of this experiment is to differentiate between a physical change and a chemical change.

Questions 1 to 20: Select the best answer to each question. Note that a question and its answers may be split across a page

MANUAL Q5: What color of light is being absorbed by the sample solution? How is that color related to the color of the solution?

b. The farther away a galaxy is the faster it appears to be moving away.

To answer each question, darken the circle corresponding to your answer using a pencil. If you decide to change your answer, please erase your original answer completely and darken your new answer.

b. Describe the spectral curve of each target type with respect to its absorption and reflectance characteristics. (3)

Lately I have been hearing a lot about security of patient’s health records and how people are losing their jobs behind accessing information that they have no need to be in. It got me to wondering just how secure our personal information is from prying eyes and how who is alerted when these prying eye are in information that doesn’t concern them. So, when I ran across this article “Security Audits of Electronic Health Information” and “HIPAA Security Rule Overview” it caught my eye and curiosity on how they might work hand in hand when it comes to protecting what information is accessed by personnel. So, I choose these articles to get more information on this topic.

Batteries store energy in chemical form. They release energy by pumping electrons’ through wires from the minus pole to the plus pole. Devices inbetween convert this energy to another form, Efficieny- e.motor=85%, combustion= 20%

Select the alternative that best answer the following questions (there is no right or wrong answers)

5.<HEF and <HED are adjacent complementary because they both are sharing point H and E and when those two angles are connecting the make 90

43. A stone is shown at rest on the ground. A. the vector shows the weight of the stone. complete the vector diagram showing another vector that results in zero net force on the stone. B. what is the conventional name of the vector you have drawn?

For multiple-choice questions, select the best answer. Answer each item by giving the number of your choice. Incorrect

Type the letter that represents the best answer to each of the multiple choice questions. Answer all questions in this section. Each question is worth 1 point.

Task Description:The world communicates by making extensive use of the electromagnetic spectrum. For the average person this is commonly accessed using radio waves. These radio waves may be over the AM or FM radio wave bands or the radio waves that transmit our television signals. Not only are people always within a ‘phone call of each other anywhere in the world they are also able to find out exactly where in the world they are by use of

3) In this experiment, only the forces on the plane surface were considered. Do the hydrostatic forces on the curved surface of the quarter-circle block affect the measurement? State why or why