Section 3 Begins - Unit 2:5 Error - Take Home Quiz

Agnes Szakacs

03/18/15

Period 2/3

Unit 2:5  Error and %Error - Take Home Quiz Questions

Be sure to include calculations.

1. A tree is 15.5 feet tall.  If I measure it to 16 feet, what is my error?  What is my percent error?
1. 0.5ft more 0.5%
2. A scientist pours 1.2L of water into a beaker that reads it as 1.1L.  What is the beaker's error and %error?
1. 0.1L more 0.1%
3. An architect estimated that the classroom is 400 square feet.  According to the blueprints, it is 412 square feet.  What was her Error and %Error.
1. 12 square feet more 12%
4. In theory, a reaction should produce 25g of water.  When performed, the reaction produced 22.5g of water.  What is the Error and %Error?
1. 2.5g short 2.5%
5. Stepping outside in the morning, an old man guessed that it was 70 degrees outside.  When looking at a thermometer, it was 63 degrees.  What was his Error and %Error?
1. 7 degrees short 7%
6. A daredevil thought he flew 105m through the air when shot out of a cannon.  He really flew 113m.  What was the daredevil's Error and %Error?
1. 8m more 8%
7. A standard gram is put on a scale and it reads 1.16g.  What is the scale's Error and %Error.
1. 0.6g more, 6%