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3.1 Safety measures concerning electricity

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Technology

Grade 8

Electricity

Module 13

Safety measures concerning electricity

Activity 1

To familiarize learners with safety measures concerning electricity

LO 1.12

You have possibly already experienced an electrical shock. If so, you will have found out that it has an impact on your body. The power of the electrical current determines the shock on your body – if the body is unable to handle the shock, you may die. Therefore it is impor­tant for your safety and that of other people that certain measures are observed when working with electricity.

Most electrical appliances are earthed in order to safeguard you. Earthing is essential see­ing that it leads the current away to the ground in case of an electrical short-circuit. This prevents a person from being shocked by the appliance if he/she were to touch it. The electrical appliance is connected to the earth so that electric power will be discharged immediately and without any danger.

Assignment 1

2.1 Mention four safety measures that should be applied at all times.

2.2 What should you do if someone suffers an electric shock?

2.3 Make a sketch in colour of an electrical plug to illustrate the correct coupling.

2.4 In an electrical plug, why is the earth pin longer than the other two pins?

2.5 Produce an A4 poster that illustrates a safety measure. Insert it as an extra page.

LO 1.12

Focus task 1

You now have the opportunity to couple an electrical plug to an electrical cord. The sketch shows you how to remove the isolating material. Your teacher will guide you with the actual coupling.

Assessment

Learning outcomes(LOs)
LO 1
TECHNOLOGICAL PROCESSES AND SKILLS The learner will be able to apply technological processes and skills ethically and responsibly using appropriate information and communication technology.
Assessment standards(ASs)
This is demonstrated when the learner:
investigates:1.1 investigates the background context, the nature of the need, the environmental situation, and the people concerned when given a problem, need or opportunity set in a nationally relevant context;
1.2 compares existing products relevant to the problem situation based on:
  • safety;
  • suitability of materials;
  • fitness for purpose;
  • cost;
1.3 develops and performs practical tests in the technological knowledge areas (structures, processing and systems and control);
1.4 uses appropriate technologies and methods to:
  • collect relevant data from different sources or resources;
  • extract relevant data;
  • make meaningful summaries;
  • use information to justify and support decisions and ideas;
designs:1.5 writes or communicates a short and clear statement or a design brief in response to a given identified situation for the development of a product or system;
1.6 lists product and design specifications and constraints for a solution to an identified or given problem, need or opportunity based on most of the design key words listed below:
  • people: age, target market, human rights, access;
  • purpose: function, what product will do;
  • appearance: colour, shape;
  • environment: where the product will be used or made, impact on the environment;
  • safety: for users and manufacturers;
  • cost: cost of materials, wastage, cost of manufacture, maximum selling price;
1.7 generates several alternative solutions and writes notes, ideas that show links to the design brief, specifications and constraints;
1.8 chooses possible solutions based on well-reasoned argument and develops the chosen idea to include more specific details using graphic and / or modelling techniques;
makes:1.9 develops a plan for making that includes all of the following:
  • resources needed ;
  • sketches showing the necessary dimensions or quantities;
  • all the steps necessary to make the product;
1.10 chooses and uses appropriate tools and materials to make products by measuring, marking, cutting or separating, shaping or forming, joining or combining, and finishing different materials accurately using appropriate techniques;
1.12 uses safe working practices and shows awareness of efficient ways of using materials and tools;

Memorandum

ACTIVITY 1

Becoming acquainted with safety precautions concerning electricity. LO 1.12

  • Learners should gain a thorough understanding of the dangers of electricity. If electricity is not used with the necessary caution, its use can be fatal. In Focus Task 1, you could use electric wire without a power supply. All learners should be given an opportunity to plug in a power plug/wall plug.

Assignment 2

1. Do not overload wall plugs.Ensure that electrical; cords are in good condition.Avoid using electricity near water.Avoid joining electrical cords.

2. Switch off the power supply.Use non-conducting materials to free the person from the power supply and pull the victim away by his/her clothing.If the victim is unconscious, mouth-to-mouth resuscitation should be applied.

3. L — brownN — blueE — green and yellow

4. current and the cover of the appliance, it is necessary to lead the current to the earth to avoid an electrical shock if anybody should touch the appliance.

5.. Learners' own attempts.

Questions & Answers

what does preconceived mean
sammie Reply
physiological Psychology
Nwosu Reply
How can I develope my cognitive domain
Amanyire Reply
why is communication effective
Dakolo Reply
Communication is effective because it allows individuals to share ideas, thoughts, and information with others.
effective communication can lead to improved outcomes in various settings, including personal relationships, business environments, and educational settings. By communicating effectively, individuals can negotiate effectively, solve problems collaboratively, and work towards common goals.
it starts up serve and return practice/assessments.it helps find voice talking therapy also assessments through relaxed conversation.
miss
Every time someone flushes a toilet in the apartment building, the person begins to jumb back automatically after hearing the flush, before the water temperature changes. Identify the types of learning, if it is classical conditioning identify the NS, UCS, CS and CR. If it is operant conditioning, identify the type of consequence positive reinforcement, negative reinforcement or punishment
Wekolamo Reply
please i need answer
Wekolamo
because it helps many people around the world to understand how to interact with other people and understand them well, for example at work (job).
Manix Reply
Agreed 👍 There are many parts of our brains and behaviors, we really need to get to know. Blessings for everyone and happy Sunday!
ARC
A child is a member of community not society elucidate ?
JESSY Reply
Isn't practices worldwide, be it psychology, be it science. isn't much just a false belief of control over something the mind cannot truly comprehend?
Simon Reply
compare and contrast skinner's perspective on personality development on freud
namakula Reply
Skinner skipped the whole unconscious phenomenon and rather emphasized on classical conditioning
war
explain how nature and nurture affect the development and later the productivity of an individual.
Amesalu Reply
nature is an hereditary factor while nurture is an environmental factor which constitute an individual personality. so if an individual's parent has a deviant behavior and was also brought up in an deviant environment, observation of the behavior and the inborn trait we make the individual deviant.
Samuel
I am taking this course because I am hoping that I could somehow learn more about my chosen field of interest and due to the fact that being a PsyD really ignites my passion as an individual the more I hope to learn about developing and literally explore the complexity of my critical thinking skills
Zyryn Reply
good👍
Jonathan
and having a good philosophy of the world is like a sandwich and a peanut butter 👍
Jonathan
generally amnesi how long yrs memory loss
Kelu Reply
interpersonal relationships
Abdulfatai Reply
What would be the best educational aid(s) for gifted kids/savants?
Heidi Reply
treat them normal, if they want help then give them. that will make everyone happy
Saurabh
What are the treatment for autism?
Magret Reply
hello. autism is a umbrella term. autistic kids have different disorder overlapping. for example. a kid may show symptoms of ADHD and also learning disabilities. before treatment please make sure the kid doesn't have physical disabilities like hearing..vision..speech problem. sometimes these
Jharna
continue.. sometimes due to these physical problems..the diagnosis may be misdiagnosed. treatment for autism. well it depends on the severity. since autistic kids have problems in communicating and adopting to the environment.. it's best to expose the child in situations where the child
Jharna
child interact with other kids under doc supervision. play therapy. speech therapy. Engaging in different activities that activate most parts of the brain.. like drawing..painting. matching color board game. string and beads game. the more you interact with the child the more effective
Jharna
results you'll get.. please consult a therapist to know what suits best on your child. and last as a parent. I know sometimes it's overwhelming to guide a special kid. but trust the process and be strong and patient as a parent.
Jharna
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Source:  OpenStax, Technology grade 8. OpenStax CNX. Sep 13, 2009 Download for free at http://cnx.org/content/col11052/1.1
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