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5. Name an appropriate apparatus that is used to prepare standard solutions in the laboratory.

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4. Explain why it is important to put off a non-luminous flame immediately after use.

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3.Explain how the hotness of a Bunsen burner flame can be increased.

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2.The diagram below shows a Bunsen burner when in use. Name the regions labeled C and D

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1.State any two differences between luminous and nonluminous flames.

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4. Solving simultaneous equations by elimination Method.

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5. Solving simultaneous equations having three unknowns.

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6. Solving Simultaneous Linear equations of two variables or unknowns by Cramer’s rule.

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3. Solving Simultaneous equations by using substitution method.

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2.Introduction to simultaneous linear equations.

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1.An overview of the Algebra chapter

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18. State how the intensity of X-rays in an X-ray tube can be increased.

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20. What are the dangers of x-rays

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19. What are the properties of x-rays?

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16. Figure 5 shows a narrow beam of X-rays passing between two metal plates in air.

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17. The anode of an X-ray tube becomes hot when the tube is in use. State the reason for this.

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15. Figure 18 shows parts of an X-ray tube.a) Explain why:i. A potential difference is applied to .

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14. An X-ray tube produces soft x-rays. State the adjustments that may be made so that the tube

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13.In an x-ray tube it is observed that the intensity of X-rays increases when potential difference

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12. X-rays are used for detecting cracks inside metal beams i. State the type of the X rays used...

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11. The accelerating of a certain X-ray tube is increased. State the change observed on the X-rays

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9. The target of X-ray tube is made of metals of high melting point. Give a reason for this.