2012-04-08 18:13:48 UTC
All of the following are true about science except
It is a body of knowledge.
It does not change once a law is discovered.
It is tested by many scientists over time.
It uses the scientific method.
Question 2 (Multiple Choice Worth 2 points)
A scientist in Japan and a scientist in Germany both conducted independent investigations that produced similar results.
What does this mean about the data that was collected?
The scientists will have to compete for the credit for this discovery.
The results are considered more reliable because they were documented by multiple sources.
The scientific community will vote on the name of the theory in order to make things fair.
The results are automatically considered a law because they were proven by two different groups.
Question 3 (Multiple Choice Worth 2 points)
The density of a sample of metal is calculated using these three different sets of data: 2.9 g/mL, 2.8 g/mL, and 3.0 g/mL. If the true density of the metal is 2.1 g/mL, what can be said about these calculated density values?
The set is both accurate and precise.
The set is accurate but not precise.
The set is precise but not accurate.
The set is neither accurate nor precise.
Question 4 (Multiple Choice Worth 2 points)
It would not be practical to use scientific experimentation to test the effect of
gravity on the movement of an object.
emotion on the quality of a painting.
adrenaline on the mating behaviors of animals.
nutrients on the gender of offspring .
Question 5 (Multiple Choice Worth 2 points)
Einstein’s Theory of Relativity was built on the research and ideas of other scientists. The Theory of Relativity proposes that the speed of light is a constant.
Which of the following statements explains why this is considered to be a scientific theory?
Scientists believe it is the best explanation because it is built on data and observations.
The majority of the scientific community voted on this theory over other possible explanations.
It is the best explanation because it supports the beliefs and opinions of most scientists.
It is a scientific law that has been supported by experimental data.
Question 6 (Multiple Choice Worth 2 points)
Temperature is used to measure the movement of particles such as atoms and molecules. As temperature increases, what is true of the particles in a substance?
the rate of movement increases
the distance between them increases
the attraction between them increases
the rate of reaction increases
Question 7 (Multiple Choice Worth 2 points)
After analyzing rock core samples in an area with frequent earthquakes, many geologists believe a severe earthquake will occur in the area in the next 50 to 80 years. Other geologists, however, believe that such a prediction cannot be determined from the data collected.
If these two groups of scientists have access to the same data, how can they form such different hypotheses?
Geologists manipulate data to fit their hypotheses, which results in different conclusions.
Scientific predictions must list every possible outcome to make sure that they are never incorrect.
Geologists have different specialties that can cause them to interpret data differently.
Scientific hypotheses need to be proven many times, so predictions of earthquakes are probably incorrect.
Question 8 (Multiple Choice Worth 2 points)
What is the main energy conversion that occurs when you plug in a lamp?
Electrical energy is converted to nuclear energy.
Thermal energy is converted to electrical energy.
Electrical energy is converted to radiant energy.
Nuclear energy is converted to radiant energy.
Question 9 (Multiple Choice Worth 2 points)
Which of the following best represents potential energy being converted to kinetic energy?
A roller coaster starts at the top of a hill and then rolls down the hill.
A pitcher throws a baseball, and then the batter hits a homerun.
A man jogs around the block and then stops to drink an energy drink.
A woman peddles her bicycle across town and back again.