TRUE or FASLE??

Question

All scientific ideas are discovered and tested by controlled experiments. EXPLAIN,

thanks

Answer 1

False:

A law is an idea that has been tested in a controlled experiment. A theory is an idea that is generally accepted true. A hypothosis is an educated guess.

Not all things can be tested in controlled experiments, and these things remain theories.

Answer 2

Your question has two parts:
1.Are all scientific ideas discovered by controlled experiments?
2.Are they also all tested in controlled experiments?
Both are false for a lot of reason.
1. Scientific ideas are sometimes discovered by accident while a controlled experiment is being conducted for a different idea. A majority of the scientific ideas are discovered by people that wonder about things, that think about explanations for the world in a logical way. Controlled experiments can really only happen when you already have an idea that you want to test, not the other way around.
2. A controlled experiment has to be literally controlled totally to be taken seriously. Everything that might affect the experiment has to be measured and regulated as exactly as is possible. It would be impossible to even measure everything that affects a mountain, so most scientific ideas pertaining to mountains can't be proven by controlled experiments.

Answer 3

False, especially since you made a universal statement. Many ideas involving the "Big Bang", quantum physics, and sub-atomic particles are mostly mathematically supported. It is not currently possible to prove them with empirical analysis and controlled experiments.

Among numerous postulates, Einstein proposed the equivalence principle which states that no experiment can distinguish the acceleration due to gravity from the inertial acceleration due to a change of velocity. To illustrate that principle, Einstein used "thought experiments" involving elevators. He compared different phenomena related to accelerations observed inside an elevator. He purposely limited the range of observations to the frame of the elevator, excluding other predictable consequences that should logically take place inside other frames. The principle of equivalence being a postulate, the reasons for which Einstein did not take into account the motion of his own frame were not explained.

In physics as in logic, a principle is valid only when it is coherent with all the facts. An exception always disproves the rule. It is surprising to read how the equivalence principle has been generally accepted while it is so easy to prove that it is not coherent with the behavior of bodies located in other frames.

Addendum:

General relativity does not claim that there is any such thing as a "global inertial reference frame". It only claims that if you consider a small enough region of spacetime, the effects of gravity will be indistinguishable (to an arbitrarily small degree of precision) from the effects of acceleration.

Einstein's famous "thought experiment" led to his theory of special relativity.

Answer 4

In theory, false. All scientific ideas SHOULD be discovered and tested by controlled experiments, It doesn't mean there are. If you are talking about a high school science homeowrk question, then the answer is true.

Answer 5

The scientific process works like this. A hypothesis is made about an observation or set of observations in nature. Experiments are then performed using a control, in which no variable that could affect the observation's result is changed, and other systems in which ONE variable is changed by a CERTAIN amount. Usually, the experiment will have different systems running in which the variable is changed by a varying quantitative amount. For example, one system might change the measurement of something by 1, and another system by 2, and test its effect on the variable. Please contact me if you have any further questions.

Answer 6

False. Can you run controlled experiements on how volcanos erupt? How long glaciers take to melt? How hurricanes, tornadoes, tsunamis, etc. happen?

I'm sure they run tests on simulated software, but other than that, I doubt someone would want to stand in the middle of a hurricane to test it out (although they DO use little sensors, but just throwing a bunch of sensors into the middle of the storm doesn't sound very controlled, now does it?).

I hope this answers at least PART of the question...

Answer 7

YES! All depends on what you consider science. TRUE-- When we test a hypothesis (idea) that has been carefully developed, we set up the controls and carry out the experiments. FALSE-- When we come to the experiment and blindly carry out portions of it so that we get results that we want, whether they agree with the facts or not!

Answer 8

Most scientific ideas are generally accepted practices that expirements backed up. Remeber all things are relative! Find information on the latest educational tool in the links below.

Answer 9

False. Some ideas come from indirect evidence - particularly ideas about space.

Answer 10

false
string theory is based on mathematical calculations/rationalization and I would consider it to be a scientific idea