O-Level Combined Science Machines Worksheet Zimbabwe

About this worksheet

This is the ZIMSEC O-Level Combined Science worksheet. It is a free worksheet for revision.

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Text from the first page

29 The diagram shows a pulley system.

What is the velocity ratio (VR) of the pulley system?
A 1
B 2
C 3
D 4

4003/1Specimen paper

9

30 The diagrams show the four strokes of a petrol engine.
Which diagram, $\mathbf{A}, \mathbf{B}, \mathbf{C}$ or $\mathbf{D}$, shows the inlet stroke?

A

B

C

Dˋ