When three students use the same meterstick to measure the length of a paper clip, they obtain results of 5.8 cm, 5.75 cm, and 5.76 cm. If the meterstick has millimeter markings, what are some reasons for the different values?

A sheet of aluminum foil weighs 2.07g. If the sheet is 24cm long and 20cm wide, how thick is the sheet in micrometers? The density of aluminum is 2.7 g/cm3.

Bob and Jill are measuring the height of Mr. Chenet (Mr Chenet is 1.8593 meters tall). Bob gets a measurement of 1.6329, while Jill gets a measurement of 1.8. This means that Bob is more accurate, while Jill is more precise.  True or False?

A student completed Part C using a small sheet of aluminum metal (?=2.70 g/cm3). The sheet had a mass of 1.3648 g, a length of 2.05 cm, and a width of 2.20 cm. Calculate the thickness of the aluminum sheet in units of millimeters. Report only the numerical portion of your answer (and watch your significant figures!)

Rolls of foil are 304 mm wide and 0.014 mm thick. (The density of foil is 2.7 g/cm3 .)What maximum length of foil can be made from 1.18 kg of foil?Express the length to two significant figures and include the appropriate units.

At a local farmer’s market, a vendor sells apples at a cost of $0.79 for exactly 1 pound. If 17 apples weigh 3.25 pounds, what is the cost of 8.95x103 apples (in dollars)? Not the answers 1,351.713 1,315.7 1,315.73 1,315.71 1,351.71 1,711.029

graduated cylinder weighs 35.825 g. When 10 mL of water is measured in it, the weight of the graduate and water is 45.835 g. Calculate the weight of the water, and express any deviation from 10g as percentage of error.

In the lab a student measured the density of an Aluminum cylinder to be 2.89 g/cm3. The handbook value for the density of Aluminum at this temperature is 2.701 g/cm3. What is the percent error in the measurement? Report your answer using correct number of significant figures and units.

Four research teams measured the mass of a fossilized sauropod skull, and what each team wrote in its team notebook is shown in the table below. Suppose a later and more reliable measurement gives 10.00 kg for the mass of the same fossil. Decide which of the earlier measurements was the most accurate, and which was the most precise.

The density of gold is 19.31 g/mL, and the density of platinum is 21.43g/mL. If equal masses of gold and platinum are transferred to equal volumes of water in separate graduated cylinders, which graduated cylinder would have the greatest volume change? Explain or show with a sample calculation.