EXPERIMENT 1 VERNIER CALIPERS

Grade 10

Physics

Practical Physics

EXPERIMENT 1

VERNIER CALIPERS

Aim of Experiment

? To measure the dimensions of the wooden block ? 7R ?QG WKH YROXPH RI WKH ZRRGHQ EORFN

Apparatus

? YHUQLHU FDOLSHUV UHFWDQJXODU ZRRGHQ EORFNV

Theory

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How to read a vernier caliper

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ractical h sics

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rade

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Result

? 7KH YROXPH RI WKH JLYHQ UHFWDQJXODU ZRRGHQ EORFN V

l?b?h

Precautions

? -DZV PXVW EH WLJKWO\ FORVHG

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Questions

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4

Grade 10

Physics

Practical Physics

EXPERIMENT 2 MEASUREMENT OF AVERAGE SPEED

Aim of Experiment

? To measure the time interval for a certain distance travelled of moving marble on the

horizontal track

? To calculate its average speed

Apparatus

? stop watch / timer, marble/ glass ball, measuring tape, track rails

Theory Distance (or) distance travelled by the body is the length of the path along which the body moves. 'LVWDQFH KDV QR VSHFL?F GLUHFWLRQ ,W KDV RQO\ PDJQLWXGH DQG WKHUHIRUH LW LV D VFDODU

x 7KH DYHUDJH VSHHG RI D PRYLQJ ERG\ FDQ EH GH?QHG DV IROORZV

Average speed is the ratio of distance travelled to time taken.

o average speed distance time taken

s

v= s

t

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B commonly used in the laboratory for measuring time intervals accurately.

BE Procedure D1. Mark four points on the horizontal track rail with suitable length. (e.g. 100 cm, 120 cm,

140 cm, 160 cm)

2. Place the marble at a certain point. (e.g. 0 cm)

3XVK WKH PDUEOH JHQWO\ start the stopwatch at the starting point (0 cm) and stop at the ?QLVKLQJ SRLQW 100 cm, 120 cm, 140 cm, 160 cm)

5HSHDW WKH H[SHULPHQW DW OHDVW WKUHH WLPHV DQG QRWH GRZQ DOO WKH GDWD

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