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M4b Prelab: Measurements

Read the lab instructions and watch the videos before answering the questions

1. An object has a mass of 33.825 g and a volume of 4.31 cm³. Calculate the density of the object with the appropriate number of significant figures in g/cm³, then convert it to kg/m³, and determine what the object is made of.

Hint: Check table 11.1 in Chapter 11 of your textbook what material has the calculated density.

1. A person runs a 110.0 m dash and is timed using three different stopwatches t₁ =

11.5 ????, t₂ = 10.46 ????, ???????????? t₃ = 10.463????. Calculate the average speed for each time with the appropriate number of significant figures.

IMPORTANT