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Waseley Hills High School
BTEC Level 1/2 First Award in Principles of Applied Science
Unit 3 Energy and Our Universe
Name:
Start Date: 4/11/13
Interim Deadline: 22/11/13
Deadline Date:29/11/13
Related Unit content:
Learning aim B: Know how electrical energy produced from different sources can be transferred through the
National Grid to homes and industry
Electric circuits: the need for a complete circuit, electrical symbols (battery, cell, switch, fuse, voltmeter,
ammeter, resistor, filament lamp), current, voltage, resistance, construct simple series and parallel circuits,
measure current and voltage using meters, use the equation: V = IR, direct current and alternating current.
Power supplies: types of batteries, solar cell, simple generators, production of electricity, environmental
impact, generation from renewable and non-renewable sources, electrical power and the equation: P = VI,
efficiency of electricity generation from different sources, National Grid, step-up and step-down
transformers and the reduction of energy losses during transmission.
Assignment B Electrical Energy
Scenario
You are a trainee electrical physicist working for the National Grid. You must have a practical
understanding of circuits and be able to carry out calculations. As part of your training you have been
asked to promote the company by producing a scientific report explaining how electrical energy is
generated and transferred to a factory or a customer’s home.
Task 1 Making circuits
RESOURCES
1. Build a selection of series and parallel circuits photograph your circuits and
then draw circuit diagrams. Design a fact sheet to accompany your diagrams
outlining the main electrical symbols used and descriptions of how to measure
voltage, current and resistance. (2.B P6)
2. Design an investigation into the resistance in a wire. Record results for voltage
and current, draw an appropriate graph and use the graph to make 2
predictions. (2.B P6)
Task 2 Generating Electricity
1. Complete the table that outlines 4 ways of generating electricity. You should
include examples of generating a.c. and d.c. electricity.
(2.B P5)
2. Compare the environmental impact of generating electricity from renewable
and non- renewable sources. You could add to the table to do this. (2.B M4)
3. Discuss which method is the most efficient and use calculations to support
your arguments.
(2.B M4)
RESOURCES
Task 3 Electricity for all
1. Complete a flow chart showing how electricity is generated in a power station
and transmitted to homes or factories.
(2.B P7)
2. Include a description of the National Grid and why Transformers are needed.
(2.B M5)
3. Use calculations to illustrate why reducing energy losses is important (2.B D4)
The grading criteria that this assignment relates to:
P5
Describe methods of producing a.c. and d.c. electricity
M4
Compare the efficiency and environmental impact of electricity generated be different sources
P6
Use V=IR to predict values in electric circuit investigations
P7
Describe how electricity is transmitted to the home or industry
M5
Assess, in qualitative terms, ways to minimise energy losses when transmitting electricity
D4
Assess in quantitative terms, ways to minimise energy losses either when transmitting electricity or
when transforming electricity into other forms for consumer applications
If you have not achieved the Level 2 criteria, your work will be assessed to determine if the following
Level 1 criteria have been met.
Criterion
To achieve the criteria you must show that you are able to:
Unit
reference
Identify methods of producing electricity from different sources
3
1B.5
Demonstrate building simple series and parallel circuits
3
1B.6
Describe electrical power in terms of voltage and current
3
1B.7
Evidence you must produce for this task;
Level
2B.P6
Description
Completed practical on series circuits
Teacher observation completed for practical
2B.M4
Part
2B.P5
Part
2B.P5
Completed practical on parallel circuits
Teacher observation completed for practical
Report on series circuits
Report on parallel circuits
Energy resource table completed for
• Fossil fuels
•
Nuclear power
•
Solar
•
Wind
•
Biofuels
•
Hydroelectric
•
Wave
•
Tidal
•
Geothermal
Definition of electrical power, current and voltage
Completed worksheet A.C. generator
A description of how A.C. is produced and why most electricity is
Checklist
2B.P7
2B.M5
2B.D4
generated this way.
Completed worksheet batteries
Description of how batteries produce electricity
Completed worksheet national grid
Diagram of a transformer with a brief description of how it works.
Detailed explanation of what transformers do.
Completed worksheet on national grid calculations
Power rating for the 6 appliances with efficiency and wasted
power
Energy transformation diagrams for the 3 types of appliances
Explanation of how using the more efficient appliances would
minimise energy losses
Learner Assessment Submission and Declaration
This sheet must be completed by the learner and provided for work
submitted for assessment.
Learner name:
Date issued:
Assessor name:
Completion date:
Submitted on:
Qualification: BTEC Level 1/2 First Award in Principles of Applied Science
Assessment reference and title: Unit 3 Energy and Our Universe , Assignment B
Task
ref.
Evidence submitted
Page numbers or
description
Learner declaration
I certify that the work submitted for this assignment is my own. I have clearly
referenced any sources used in the work. I understand that false declaration is a
form of malpractice.
Learner signature: ________________________________Date:_______________
Summary assessor’s feedback
Signed:
Dated:
Internal verifier’s comment
Signed:
Dated: