- Physics forpre-IGCSE-Homework sheet 1 - .iiiml Physics forpre-IGCSE-Homework sheet "1 " A...
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Physics for pre-IGCSE-Homework sheet "1 "
01: chose the correct answer:
1. A piece of cotton is measured between two points on a ruler.
When the length of cotton is wound closely around a pen, it goes round six times
Physics for pre-IGCSE-Homework sheet "1 "cold
4. Some liquid is heated in a flask.The diagrams show the height of the liquid in the tubewhen the liquid is cold and when it is hot.What is thedifference in the heights?
A. 1.7cmB. 2.8 ernC. 3.2 emD. 4.5 cm
5. The diagram shows an enlarged drawing of the end of a metre rule.It is being used to measure the length of a small feather.
What is the length of the feather?A. 19 mm B. 29 mm C. 19 cm D. 29 cm
Q2:Vernier Calipers and Micrometers:a. Read the following Vernier caliper measurements. (The scales have been enlarged for easier reading.)
The Vernier caliper is calibrated in metric units.
2 4 1 2 45 6 33 5 6
_~~ Physics for pre-IGCSE-Homework sheet "1 "
2 4 653
b. Read the following micrometer measurements
o 3 51 42
iiiml Physics for pre-IGCSE-Homework sheet "1 "
~A person winds some thread tightly 4 times round the length of a metre rule and cuts the ends off level withthe left-hand end of the rule, as shown in Fig. 1.1.
ends cutoff here
thread 1m rule
(a) To the nearest metre, what is the length of the thread?
(b) Is the actual length of thread slightly greater or slightly less than your answer to (a)?Tick one box and give your reason.
slightly greater D slightly less Dreason .