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ZIMSEC GCE Combined Science Public Diagnostic Mock

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Title ZIMSEC GCE Combined Science Public Diagnostic Mock
Description Original timed online diagnostic covering Biology, Chemistry and Physics. Twenty objective questions with instant scoring. No signup required; one attempt.
Total Marks 100 points
Duration 60 minutes

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Session Window Started 04 Sep 2026 04:14 and closes 04 Sep 2026 05:14.

Exam questions

Answer all 20 questions, then submit the paper once.

Question 1

Multiple Choice - 5.00 marks

Prompt Which cell structure controls movement of substances into and out of a cell?
Select one answer.

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Question 2

Multiple Choice - 5.00 marks

Prompt Which two raw materials are needed for photosynthesis?
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Question 3

Multiple Choice - 5.00 marks

Prompt Which plant tissue transports water and mineral salts from roots?
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Question 4

Multiple Choice - 5.00 marks

Prompt What is the main purpose of respiration in living cells?
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Question 5

Multiple Choice - 5.00 marks

Prompt What is the main role of decomposers in an ecosystem?
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Question 6

Multiple Choice - 5.00 marks

Prompt Atoms of the same element always have the same number of what?
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Question 7

Multiple Choice - 5.00 marks

Prompt Which pH value represents an acidic solution?
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Question 8

Multiple Choice - 5.00 marks

Prompt Which gas is produced when an acid reacts with a carbonate?
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Question 9

Multiple Choice - 5.00 marks

Prompt Which method separates an insoluble solid from a liquid?
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Question 10

Multiple Choice - 5.00 marks

Prompt Oxidation can be defined as the gain of what?
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Question 11

Multiple Choice - 5.00 marks

Prompt How is density calculated?
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Question 12

Multiple Choice - 5.00 marks

Prompt How is average speed calculated?
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Question 13

Multiple Choice - 5.00 marks

Prompt What is the SI unit of electric current?
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Question 14

Multiple Choice - 5.00 marks

Prompt In a simple series circuit, which quantity is the same through every component?
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Question 15

Multiple Choice - 5.00 marks

Prompt For reflection from a plane mirror, the angle of reflection is equal to what?
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Question 16

Multiple Choice - 5.00 marks

Prompt What does a convex lens do to parallel rays of light?
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Question 17

Multiple Choice - 5.00 marks

Prompt How is pressure calculated?
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Question 18

Multiple Choice - 5.00 marks

Prompt Work done equals force multiplied by what?
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Question 19

Multiple Choice - 5.00 marks

Prompt Which is a renewable energy source?
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Question 20

Multiple Choice - 5.00 marks

Prompt Which heat-transfer process mainly occurs through movement of liquids and gases?
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Finish and mark

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