Hypothesis
. as a tentative explanation for observation that are made that result in the formulation of this concept. element.
What is the term for a tentative explanation that tries to integrate and account for the relationship of various findings and observations?
STUDY
.
theory
. A tentative explanation that tries to integrate and account for the relationship of various findings and observations (p. 20).
What is the term used for findings that are summarized based on pattern or trend?
Hypothesis
. Defined as tentative explanantion for observations that guides experimentation. Law. Term used for findings that are summarized based on a pattern or trend as a concise verbal or mathematical statement of a reliable relationship.
Is 77k colder than 4k?
A particular temperature in degrees Celsius is larger than the temperature in Kelvin.
77 K is colder than 4 K
. The juice from an orange is a mixture.
Which of the following is a type of radioactive radiation that has no charge and is unaffected by external electric or magnetic fields?
Gamma rays
have no charge so are unaffected by magnetic and electric fields.
When applying the scientific method it is important to avoid any form of hypothesis quizlet?
Terms in this set (26)
When applying the scientific method, it is important to avoid any form of hypothesis. When applying the scientific method, a model or theory should be based on experimental data. Matter is anything that has mass and occupies space. The density of a substance is an intensive property.
Which of the following does not have a uniform composition throughout quizlet?
A mixture in which the composition is not uniform throughout is a
heterogeneous mixture
.”
What is the first step in the scientific method?
The first step in the Scientific Method is
to make objective observations
. These observations are based on specific events that have already happened and can be verified by others as true or false. Step 2. Form a hypothesis.
What are examples of hypothesis?
For example someone performing experiments on plant growth might report this hypothesis: “
If I give a plant an unlimited amount of sunlight, then the plant will grow to its largest possible size
.” Hypotheses cannot be proven correct from the data obtained in the experiment, instead hypotheses are either supported by …
What does a controlled experiment test?
When possible, scientists test
their hypotheses
using controlled experiments. A controlled experiment is a scientific test done under controlled conditions, meaning that just one (or a few) factors are changed at a time, while all others are kept constant.
Can ionic compounds carry a net positive or negative charge?
The atoms in chemical compounds are held together by attractive electrostatic interactions known as chemical bonds. Ionic compounds contain
positively and negatively charged ions
in a ratio that results in an overall charge of zero.
Is a scoop of vanilla ice cream a pure substance?
Summary.
Pure substances are only made of one atom
and the only pure substance of vanilla ice cream is sugar which is essential to taste,because without it, ice cream wouldn’t taste as sweet. … Examples of mixtures in a vanilla ice cream are milk,vanilla extract,air, and eggs.
What is a unifying principle that explains a body of experimental observations?
| Front Back | Theory A unifying principle that explains a body of facts and/or those laws that are based on them. |
|---|
Why are gamma rays not affected by magnetic field?
Alpha particles are positively charged, beta particles are negatively charged, and gamma radiation is electrically neutral . … Because they consist of charged particles, alpha and beta radiation can also be deflected by magnetic fields . Just as with electric fields, gamma radiation is
not deflected
by magnetic fields.
Which type of radiation is the most penetrating?
Gamma radiation
is the most penetrating of the three radiations. It can easily penetrate body tissue.
Which type of radiation has the greatest penetrating power?
γ-rays and X-rays
have higher penetrating power than α-particles or β-particles, travel several tens to hundreds of meters in the air (depending on their energy) and gradually lose their energy as they collide with atoms in the air.
