PHYSICS MIDDLE SCHOOL

________________________ from the wind transfers to the water as the water moves toward land.A. Energy
B. Moisture
C. Vibrations

Answers

Answer 1
Answer: A. Energy !!! your welcome

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When a wave enters a medium and changes into another form of energy, usually TE, This is called:a. absorption b. transmissionc. reflectiond. refraction

Which of the following is true statement about isotopes?A.
The number of protons always equals the number of neutrons in all isotopes.

B.
The number of protons never equals the number of neutrons in an isotope.

C.
Different isotopes for the same element will always have the same numbers of neutrons.

D.
Different isotopes for the same element always have the same number of protons.

Answers

Answer:

D. different isotopes for the same element will always have the same numbers of neutrons.

Explanation:

An isotope is the different variant of an element that has different number of neutron. There are various elements found in nature that have different isotopes.

Number of neutrons present in atom is different for the same element which makes the mass of one isotope different from the another.

Example of such isotope : Isotope of hydrogen are Protium, Deuterium and Tritium.

Final answer:

Different isotopes for the same element will always have the same numbers of neutrons.

Explanation:

The correct statement about isotopes is C. Different isotopes for the same element will always have the same numbers of neutrons. Isotopes are variants of an element that have the same number of protons but different numbers of neutrons. The number of protons in an element determines its atomic number, whereas the sum of protons and neutrons determines its atomic mass. So, while isotopes of the same element have the same number of protons, they can have different numbers of neutrons.

Learn more about Isotopes here:

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What are two ways in which the suns energy can be captured and used?

Answers


The oldest way ... the way we've been using as long as we've been
walking on the Earth ... has been to use plants.  Plants sit out in the
sun all day, capturing its energy and using it to make chemical compounds. 
Then we come along, cut the plants down, and eat them.  Our bodies
rip the chemical compounds apart and suck the solar energy out of them,
and then we use the energy to walk around, sing, and play video games.  

Another way to capture the sun's energy is to build a dam across a creek
or a river, so that the water can't flow past it.  You see, it was the sun's
energy that evaporated the water from the ocean and lifted it high into
the sky, giving it a lot of potential energy.  The rain falls on high ground,
up in the mountains, so the water still has most of that potential energy
as it drizzles down the river to the ocean.  If we catch it on its way, we
can use some of that potential energy to turn wheels, grind our grain,
turn our hydroelectric turbines to get electrical energy ... all kinds of jobs. 

A modern, recent new way to capture some of the sun's energy is to use
photovoltaic cells.  Those are the flat blue things that you see on roofs
everywhere.  When the sun shines on them, they convert some of its
energy into electrical energy.  We use some of what they produce, and
we store the rest in giant batteries, to use when the sun is not there.
 
It can be used by giving you energy and buring calories

5. Limestone typically doesn't accumulate in the ocean at depths below 4,000 meters because below that depth, calcite is _______.6. Based on the principle of original horizontality, geologists conclude that layers of sedimentary rock that have been tilted must have been subjected to _______.
7. Based on the principle of inclusions, the cobbles in conglomerate must have been formed _______ the conglomerate.
8. Geologists use the principle of _______ to justify using fossils in a sample of sedimentary rock to determine the rock’s age.
9. Partings between adjacent beds of sedimentary rock may represent periods of _______, which could range from a few decades to a few centuries.
10. Some graded beds, especially those resulting from deposition by a fast-moving debris flow, are reversed, which means _______ material is at the top instead of at the bottom.

Answers

Answer:

Explanation:

5. Limestone typically doesn't accumulate in the ocean at depths below 4,000 meters because below that depth, calcite is ___not preserved ____.

The calcite compensation depth CCD is the depth at which the rate of dissolution of calcite increases beyond that of accumulation.

6. Based on the principle of original horizontality, geologists conclude that layers of sedimentary rock that have been tilted must have been subjected to __tectonic forces_____.

Tectonic forces causes changes in a particle terrain

7. Based on the principle of inclusions, the cobbles in conglomerate must have been formed __earlier than_____ the conglomerate.

The principle of inclusion states that the inclusion is older than the rock that contains it.

8. Geologists use the principle of __fossil and fauna succession _____ to justify using fossils in a sample of sedimentary rock to determine the rock’s age.

The principle of fossil and fauna succession was credited to Williams Smith and it is used for relative dating of a sedimentary sequence. Here, fossils of plants and animals are used to date a sequence.

9. Partings between adjacent beds of sedimentary rock may represent periods of __unconformity _____, which could range from a few decades to a few centuries.

An unconformity is a period of non-depsotion or erosion within a rock layer.

10. Some graded beds, especially those resulting from deposition by a fast-moving debris flow, are reversed, which means ___the oldest____ material is at the top instead of at the bottom.

From the principle of superposition of strata, we know that the oldest layer is at the bottom of the sequence and the youngest is on top.

Answer:

1. high energy

2. deposition

3. Silt

4. limestone

5. Soluble

6. tectonic forces

7. before

8. principle of faunal succession

9. non deposition

10. coarser

Identify two ways of changing the strength of an electric force

Answers

When you talk about "the strength of an electric force" in middle school, I'm pretty sure you're talking about the force between two electrostatic charges that either pulls them together or pushes them apart.

The strength of that force depends on

-- the product of the amounts of charges on the two charged objects

-- the distance between the centers of their charges.
magnetism and an increase/decrease in temperature

Why is it important to use the correct number of significant digits whenreporting the results of an experiment?
O
A. The number of significant digits indicates how many experiments
you performed
O
B. The number of significant digits indicates how spread out your
data are.
) C. The number of significant digits indicates what your average data
value is.
O
D. The number of significant digits indicates how precise your
measurements are

Answers

Answer:

The correct answer is D.

Explanation:

It is important to use the correct number of significant numbers when reporting the results of an experiment because they indicate the accuracy of the measurements. Significant numbers in measurement are those that provide fundamental information about uncertainty or accuracy of measurement.

Have a nice day!

Answer:

D

Explanation:

Scientists use significant figures to avoid claiming more accuracy in a calculation than they actually know.

What type of material is inside the holes in an electrical outlet?

Answers

The material is a type of springy brass that sort of grip the plugs when they get near the socket
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