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JUPEB 2022/23 PHYSICS PRACTICAL ANSWERS AND JUPEB 2022 PHYSICS THOERY ANSWERS

Posted by on November 12, 2022 0

JUPEB 2022/23 PHYSICS PRACTICAL ANSWERS AND JUPEB 2022 PHYSICS THOERY ANSWERS

VERIFIED AND LEGIT PHYSICS ALTERNATIVE TO PRACTICAL ANSWERS

Theory Answers here

 

(3viii)

Slope, S = ΔZ/ΔR-¹

S = (0.84 – 1.28)/(0.6 – 0.29)

S = -0.44/0.31

S = -1.419

Intercept, c = 1.68

 

(3ix)

K = c-¹ = (1.68)-¹

K = 0.595

 

(3x)

(i) I avoided parallex error when reading the potentiometer

(ii) I ensured tight connections

 

(3bi)

A possible reason is wrong circuit connection

Solution: Check connections and ensure they are all tight.

 

(3bii)

I – Voltage

3vi)

[TABULATE]

 

R(Ω): 1.0  2.0  3.0  4.0  5.0

 

l (cm): 60.00  50.0  45.0  42.9  41.2

 

(100 – l)cm: 40.0  50.0  54.5  57.1  58.8

 

Z=(100 – l)/l : 0.6667  1.0000  1.2000  1.3310  1.4272

 

R-¹(Ω-¹): 1.0000  0.5000  0.3333  0.2500  0.2000

 

(3vi

(2bi)

{TABULATE}

[UNDER REFLECTION OF LIGHT BY PLANE SURFACE]

(i) Forms an upright image always.

(ii) Image formed when light is reflected is always the same size as object.

 

[UNDER REFLECTION OF LIGHT BY CURVED SURFACE]

(i) Image formed by by curved mirror can be inverted or upright image formed.

(ii) Image formed depends on where the object is placed.

 

(2bii)

Angle about a point = 360°.

Angle between mirror = 360° – 320° = 40°.

No. of images formed by an inclined mirror = 360/∅ – 1,

Therefore, 360/40-1,

Therefore, 9 – 1 = 8.

Therefore, Number of images = 8 images.

Physics Practical Answers

(1bii)

Weight in Air = 2.9N

Weight in water= 1.3N

Relative Density= ?

Relative Density = Weight in Air/ Change in weight of water

R.D = 2.9/(2.9 – 1.3)

= 2.9/1.6 = 1.8125

Relative Density = 1.813

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(3bi)

The positive terminal of the cells and the battery used the circuit might not be connected potentiometer wire

Correction: In such case we will ensure if all connections are tight and connecting wire are not broken

 

(3bii)

Parallel —> Voltage remains the same

For series —> Connect remains the same

(1b)

(i) Diagram

 

(ii)

– It decreases the food wastage.

– It increases the storage period of perishable food materials.

– It ensures the all year availability of seasonal food materials.

– It  decreases hazard from microbial pathogen.

 

(2b)

(i) To kill harmful bacteria that may have grown since the food was cooked.

(ii) To avoid eating cold food.

 

(2c)

– Shrimp

– Crayfish

– Crab

– Lobster

(5ai)

{PICK ANY 4}

(i) Cold storage.

(ii) Freezing.

(iii) Canning.

(iv) Drying.

(v) Fermentation.

(vi) Irradiation.

 

(5aii)

(i) a softer.

(ii) Cheddar.

(iii) creamy Lancashire.

(iv) Gruyère-style.

 

(5b)

{PICK ANY 2}

(i) It minimizes the amount of time spent in food preparation

(ii) It eliminate Fatigue

(iii) It Aids in the elimination of unnecessary movements

 

(5c)

Coming

(2B)

(i) soon

 

(ii)

– Google Sheets

– iWork Numbers

– Microsoft Excel

– VisiCalc

 

(iii)

(a) A Worksheet is basically a single-page spreadsheet containing information. A workbook is a file that contains multiple spreadsheets.

(b) Sorting means arranging the data in ascending or descending order while Filtering is a quick and easy way to find and work with selected data based on the criteria you specify.

The three most common general uses for spreadsheet software are to create budgets, produce graphs and charts, and for storing and sorting data. Within business spreadsheet software is used to forecast future performance, calculate tax, completing basic payroll, producing charts and calculating revenues

Close all workbooks and exit Excel

In the upper-right corner of the Excel window, click Close. .

On the File tab, click Exit.

 

 

 

 

Word Processors

 

The word processor is one of the most-used computer applications in education. There are four primary functions of word processors: composing, editing, saving and printing.

Spreadsheet software is a software application capable of organizing, storing and analyzing data in tabular form. The application can provide digital simulation of paper accounting worksheets. They can also have multiple interacting sheets with data represented in text, numeric or in graphic form

 

 

Therefore, a Spreadsheet Package is a program that enables the computer user to carry out calculation-related tasks. Spreadsheets are majorly used for organizing and analysing numeric data. They were designed to replace the pencil, calculator and the writing pad.

(3biii)

 

  1. Click the Tools > Save Settings As Default.
  2. Click the Tools > Options > Workspace > Export.
  3. Select All Check Boxes and click Save.
  4. Give it a filename and Save.

 

  1. b) Fill Tool is used to design or apply artistic effect to the inner part of an object or text.

 

  1. C) Shape Tool is used to reshape or trim an object or text.

 

  1. D) Outline Tool is used to apply outline effect or colour to an object or text. When clicked, it opens a flyout from which you can choose preset outline thickness and colours.

(1b)

(i) coming…

(ii)

(a) Primary key: is a specific choice of a minimal set of attributes that uniquely specify a tuple in a relation.

 

(b) Table: is a collection of related data held in a table format within a database.

 

(iii)

– MySQL

– PostgreSQL

– Microsoft Access

– SQL Server

– FileMaker

– Oracle

(Choose any 4)

 

(iv) A database is comprised of tables – which contain fields – that store discrete information.

°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°

(2b)

(i) _Loading_

 

(ii)

– Google Sheets

– iWork Numbers

– Microsoft Excel

– VisiCalc

 

(iii)

(a) A Worksheet is basically a single-page spreadsheet containing information. A workbook is a file that contains multiple spreadsheets.

(b) Sorting means arranging the data in ascending or descending order while Filtering is a quick and easy way to find and work with selected data based on the criteria you specify.

°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°

3bii)

*(a)* Eyedropper Tool – displays a menu with a variety of icons for specifying an object fill. Selecting the eyedropper tool, allows shadow to show

behind the object/text.

*b)* Fill Tool is used to design or apply artistic effect to the inner part of an object or text.

*C)* Shape Tool is used to reshape or trim an object or text.

*D)* Outline Tool is used to apply outline effect or colour to an object or text. When clicked, it opens a flyout from which you can choose preset outline thickness and colours.

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