Module 6 Flashcards
What are the types of errors?
- Random Error
- Systematic Error
- Gross Error / Blunders
What is a random error / example?
Random Errors occur by chance. This may be a result of fluctuations in weather or instruments involved.
What is a systematic error?
Systematic Errors are caused by instruments that have not be calibrated properly and result in consistently different measurements that vary to their true value.
What is a Gross Error / Blunder?
- Caused by the investigator and results in outliers.
What does Accuracy refer to?
Accuracy refers to the degree to which the measurement matches the true or expected value.
How can Accuracy be improved?
Accuracy is improved when scientists use tools that are calibrated correctly and are trained in the use of the tool.
What does Precision refer to?
Precision refers to the ability of the instrument to reproduce the same value each time.
How can Precision be improved?
Precision improves with more finely incremented tools that require less estimation.
What is Activation Energy?
Activation energy is the minimum energy required to break existing bonds for a reaction to occur.
What factors affect reaction rate?
- Temperature
- Concentration
- Surface Area
- Pressure
- Catalyst Chemical
What is Boyle’s Law?
Boyle’s Law explores the interaction between the volume and pressure of an ideal gas at a constant temperature.
Is Boyle’s Law inversely proportional?
Yes.
What is Charles’ Law?
Charles’ Law explores the interaction between the volume and temperature of an ideal gas at a constant pressure.
Is Charles’ Law inversely proportional?
No, it is directly proportional.
What is X-Ray Diffraction?
X-Ray Diffraction is a technique used to obtain information about proteins by examination of their crystals.
List 3 benefits that came out of X-Ray Diffraction?
- DNA finger printing and testing.
- Genetic technologies.
- Understanding genetic diseases and developing cures for these diseases.
What is Refraction?
Refraction is the bending of light waves that occurs when it enters a different medium.
What does LHC stand for?
Large Hadron Collider
What technologies came out of our understanding of the Laws of Reflection & Refraction?
- Microscope
- Telescope
What is Rosalind Franklin most known for?
Dr Rosalind Franklin used X-Ray diffraction techniques to study the structure of DNA.
What Is Radiotherapy?
Radiotherapy is a process that uses radiation to cure cancer.
What does GMO stand for?
Genetically Modified Organisms
What did Rosalind Franklin use in order to obtain a photograph of DNA?
X-ray Crystallography.
What are the 2 methods to produce GMOs?
- Recombinant DNA Technology
- Reproductive Cloning
What is a Genetically Modified Organism (GMO)?
A GMO is any organism whose genetic material has been deliberately manipulated or modified using genetic engineering.
What are Newton’s 3 Laws?
- An object at rest will remain at rest, and an object will remain in motion, unless it is acted on by an external force.
- The force acting on an object is equal to the mass of that object times its acceleration. F = m x a
- For every action, there is an equal and opposite reaction.
Name 2 types of Anti-Seismic Technologies.
- Base Isolation Systems
- Internal Dampers
What are the 3 main types of radiation emitted during Radioisotope?
- Alpha Radiation
- Beta Radiation
- Gamma Radiation
