Physical Science Practical Test 2017 Overport Secondary Practical Test

926 words - 4 pages

Physical Sciences Practical Task Grade 12 06 September 2016
Education
KwaZulu-Natal Department of Education
REPUBLIC OF SOUTH AFRICA
UTHUKELA DISTRICT
PHYSICAL SCIENCES
PRACTICAL TASK
06 SEPTEMBER 2016
GRADE 12
MARKS: 25
TIME: 45 MIN
This question paper consists of 8 pages including cover page
Name of Learner………………………………………………………………………………………………..Grade………………….
INSTRUCTIONS AND INFORMATION
1. Write your name and grade in the appropriate spaces on the FRONT PAGE of this question paper.
2. This question paper consists of TWO OPTIONS (Option 1 and Option 2).
Choose ONLY ONE OPTION (option 1 or option 2) and answer all the questions from that option.
3. Non-programmable pocket calculators may be used.
4. Appropriate mathematical instruments may be used.
5. Show the formulae and substitutions in ALL calculations.
6. Round off numerical answers to TWO decimal places where necessary.
7. Give brief motivations, discussions, et cetera where required.
8. Separate information sheets are not attached. Relevant information you might need is as follows:
emf (ε) = I(R + r)
OPTION 1
QUESTION 1
Learners determine the internal resistance of a battery during an experiment. They set up
the apparatus as shown below.
A
V
R
S
.
The following meter readings are displayed:
2
W
V
0
4
Voltmeter reading (V)
Ammeter reading (A)
X
A
0
1
With switch S open
2
Y
V
0
4
With switch S closed
Z
A
0
1
1.1 Record the meter readings that have been obtained by the learners in the table below:
Voltmeter reading (V)
Ammeter reading (A)
Switch S open
W =
X =
Switch S closed
Y =
Z =
(4)
1.2 Use the information in the table in question 1.1 to calculate the internal
resistance of the battery. (4)
____________________________________________________________________________
____________________________________________________________________________
____________________________________________________________________________
____________________________________________________________________________
1.3 Explain why the measured voltage reading (potential difference) in the open circuit
differs from that in the closed circuit. (2)
____________________________________________________________________________
____________________________________________________________________________
____________________________________________________________________________
1.4 A learner accidentally short-circuits resistor R.
1.4.1 Calculate the current in the battery. (3)
____________________________________________________________________________
____________________________________________________________________________
____________________________________________________________________________
____________________________________________________________________________
1.4.2 Explain why it is dangerous to short-circuit battery terminals. (2)
_________________________________________________________________________...

RELATED

VO2 & blood lactate data obtained from a cycle ergometry test as a guide for physical capacity - Loughborough - Essay

1583 words - 7 pages VO2 & blood lactate data obtained from a cycle ergometry test as a guide for physical capacity Introduction In the past, it was commonly believed that lactic acid was a waste product brought about by the process of glycolysis, involving the inadequate supply of oxygen to working muscles (Hill and Lupton 1923). This view has been greatly debated since then, with claims of anaerobic glycolysis and lactate processes ongoing even during resting

Mathematics Test for Secondary 1 - Sec 1 - MAth

532 words - 3 pages Sec 2 IP Maths EOY test 1 1. U-shaped curve passes through the point and has a minimum point of . Find when . 2. Given that , and , where . Find the value of 3. Two consecutive positive odd numbers and are such that . Given that the sum of their squares is 4234 and . Find the value of a. b. c. 4. Given , find the value of without finding . 5. 6 men were required to build a bridge 20 metres long in 18 days. On the 4th day, 2 men fell ill

Snail Invertebrates Science Report - Biology - Science Practical Experiment Report

925 words - 4 pages correctly which showed a huge difference to the result. The hypothesis was neither supported nor contradicted because the majority of the snails preferred the moist environments although a few of the snails also preferred the driest environment. Science was used in the experiment by using observations to answer questions and test the hypothesis. It is believed that if there was more time given for the experiment more repeat trials could have been

Sport science practical write up - year 12 - essay

1339 words - 6 pages Practical task write up Purpose: The reasons for completing this task is to test our ability to preform a task to the best we possible can, by using concentration, attention, stress, arousal, and to test out Yerkes and Dodson’s inverted U theory in a practical activity, which was putting a golf ball over 1.8 meters. The participants were eight Hutchins students, two Collegiate girls and one Fahn girl. Because I wasn’t there I would expect to

Engineering Review For Chapter 3 and Chapter 4 of Material Science class - Prairie View A&M University, CHEG 2013 - Test Review

890 words - 4 pages Tiarra Rodrigues Chemical Engineering 11/1/2017—Wed (2:00-2:50) 1. Which of the following statements best describes "cognitive learning"? · It entails the acquisition of new knowledge and intellectual skills 2. In Bloom's Taxonomy, the highest level intellectual skill is: · Creating 3. Mr. C. M. Knaphle, Jr., of Philadelphia, was: · A coal salesman 4. Which statement are true about taking notes on a computer · Perfect legible notes · Keep notes

think about it, how to plan and prepare a descriptive timetale - St aidans - schedule

1682 words - 7 pages , 26 March 2018 Science Year 8 Location: BGS Assignment Assignment Assignment WT1 Short Story The Age of CGI Jelly Cell Due in class today Final Project Model and Justificiation table Period -1 EN08A, EN08B, EN08C, EN08D, EN08E, EN08F, EN08G, EN08H, EN08I Period -1 DT08B, DT08D, DT08F, DT08H Period -1 SC08A, SC08B, SC08C, SC08D, SC08E, SC08F, SC08G, SC08H, SC08I Tuesday, 27 March 2018 French Year 8 Test Test 1 Writing Test Period 1 FN08A Location

How the temperature of a candle’s surrounding area affects time taken for the flame to extinguish - Physics - Practical Report

1801 words - 8 pages experiments due to the wick becoming too short, it is possible for there to be variation in the two candles which could weaken the reliability of the experiment. This would have a small effect as it is only a small difference in candle wick length. Use a new candle in each test. Conclusion The higher the temperature, the quicker the flame will extinguish. Therefore the hypothesis is supported. References Dictionary.com. (2017). Dictionary.com

Isolate Carbon Dioxide Through The Upward Displacement Of Air And Then Demonstrate Some Of Its Chemical And Physical Properties With The Isolated CO2

971 words - 4 pages was then placed at the end of the gas delivery tubing.9.) The remaining hydrochloric acid solution was then poured into the reaction tube.10.) Once the reaction ceased the second test tube containing carbon dioxide was sealed off with astopper.Upon completion of these steps we had two test tubes containing carbon dioxide.7.2 Demonstrating carbon dioxide’s physical propertiesThe physical properties which were demonstrated were carbon dioxide

Childhood Trauma and Intelligence - college of charleston, Intelligence and IQ - Research paper

2575 words - 11 pages ). Results Specific CTQ scales were significantly associated with measures of cognitive function. Emotional abuse was associated with impaired spatial working memory performance. The Childhood Trauma and Intelligence 7 emotional abuse score was significantly associated with the number of double errors in the Spatial Working Memory test. There was a significant association between the physical neglect score and the number of double errors in the Spatial

infection prevention and control in nursing practice - year 1 Adult Nursing Practice - essay

1302 words - 6 pages the materials from lectures, seminars and workshops. Assessment methods: 2.2 Assessment methods that are used in nursing for the topic infection prevention and control include written examination and practical assessments. The practical assessment used is the Objective Structured Clinical Examination (OSCE). The OSCE assessment test students on their ability to apply their clinical skills and knowledge in order to care for patients instead of them

Is there a way to punish school bullying effectively - Class - Essay

705 words - 3 pages the steps. The results that was expected from this experiment was that if an acid and a metal react together it should produce salt and hydrogen gas and I successfully had the same results. Part 5: Conclusion In my investigation the results were partially accurate because I didn’t have much samples to test. I didn’t have much questions about the experiment. Part 6: Reference Armina’s results Oxford Science 9 Past experiments

The Correlation Between Science and Religion in Life Of Pi - English - Essay

1033 words - 5 pages the protagonist, Piscine (Pi) Molitor Patel, as he seeks meaning in his life through faith in both spirituality and reason. When put to the greatest test of survival, it becomes evident that his open minded attitude is what aids him. Martel uses Pi in order to portray that a balance of both religion and science in one is practical and essential. The encounter between Mr. Kumar, Pi’s biology teacher and the first devout atheist he meets, and Mr

Why is blood work such an amzing things for - lehman college - ajhk

3591 words - 15 pages , tweezers, and scissors) with soap and water to minimize any contamination prior to performing each test. 2. Label the columns of a spot plate with a marker as follows: “+” and “-”, these columns will represent your positive and negative controls for each test. Place two-three threads from the positive control (known blood sample) into the wells of the “+” column for SCI 114 – Scientific Principles of Forensic Science Laboratory Exercise

The Benefits Of Technology Upon Training

3405 words - 14 pages mitochondria and oxidative enzymes. All these changes come together to overall improve the efficiency of the athlete's respiratory system.There are some practical implications suffered by high altitude training these areDiet - A high carbohydrate, low salt diet allows for better adaptation and less risk of "mountain sickness". Some people experience significant decline in appetite and the resulting loss of muscle mass may hinder performance.Iron is

What is important in scientific investigation? - UCI bio 199 - research paper

920 words - 4 pages new ideas to test. The other remarkable condition in doing scientific investigation is that science in endless and the scientist can expand and extend his research as much as he gets the desirable answer to his problem. Comment by stjenalo: Negative outcome is also am important knowledge. Comment by stjenalo: This is part of trouble shooting. Comment by stjenalo: Scientific principles are complex Comment by stjenalo: No such thing. One