Combining upper and lower bounds

Combining upper and lower bounds

Mr. Underwood

Multiple Choice

How can you calculate DENSITY ?

• volume x mass

• mass / volume

• volume / mass

• weight / area

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Estimate the answer to

 $\frac{\left(25.32\ \times\ 4.12\right)}{59}$  

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If 1500m is travelled in 5 mins, what is the speed in meters per second?

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Calculate the upper bound of the following measurement:

6.3 N

So far you have been able to calculate the maximum and minimum values of single measurements (upper and lower bounds).

This has allowed us to calculate the error interval of a measurement e.g

However, you need to be able to calculate the maximum and minimum values of compound measurement (combining bounds together)

• The image on the right shows the rules on how to calculate maximum and minimum values of a compound measurement

• You first have to calculate the upper and lower bounds of each measurement in the calculation

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Two runners ran a race and finished with times of 11.15 s and 10.2 s.

Calculate the upper bound of the sum of the two times ran.

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A rectangle has a base length of 2.5 cm and vertical height of 2 cm.

Write the correct method to solve the minimum area of the rectangle