Scientific Calculations Worksheet
A Grade 11 science worksheet focusing on significant figures, dimensional analysis, and error propagation in scientific calculations.
Includes
Standards
Scientific Calculations Worksheet
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Date:
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Read each question carefully and provide your answers in the space provided. Show all your work for calculations, including units and significant figures.
1. Determine the number of significant figures in each of the following measurements:
a) 0.00340 g
b) 20.00 mL
c) 1500 kg
d) 5.0 x 10^3 m
2. Perform the following calculations and report your answer with the correct number of significant figures:
a) 12.3 cm + 4.56 cm
b) 23.50 g / 5.0 mL
3. Convert 75 kilometers per hour to meters per second. Show all conversion factors.
4. A chemical reaction produces 2.5 moles of product. If the molar mass of the product is 180.16 g/mol, what is the mass of the product in kilograms?
5. When adding or subtracting measurements, the absolute uncertainty in the result is the of the individual absolute uncertainties.
6. When multiplying or dividing measurements, the relative uncertainty in the result is the of the individual relative uncertainties.
7. Which of the following numbers has three significant figures?
0.005
500
50.0
500.0
8. A student measures the length of a desk as 1.50 ± 0.02 m and its width as 0.75 ± 0.01 m. Calculate the area of the desk and its absolute uncertainty.
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