PHYSICS HIGH SCHOOL

You or your personal trainer should always use the _____ safety screening.PAC-R
PAR-Q
PRA-Q
Heart Rate Consultation

Answers

Answer 1
Answer: The answer to the question presented above would be PAR-Q or the Physical Activity Readiness Questionnaire. The purpose of this questionnaire is to identify if you have any medical risks and to know your overall medical background for future reference of prevention of complications whenever you're training.
Answer 2
Answer:

Answer:

Its PAR-Q

Explanation:

i think

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If velocity decreases, mass increases or decreases?

Answers

If the velocity decreases, increases. This situation is based about the momentum of a body where it is equal to mass times velocity. Velocity is inversely proportional to mass. That is why mass increases if velocity decreases.

If only a green light shown on a bunny that has black and white fur, what would the bunny look like?

Answers

The white fur reflects all colors, so would appear green.
The black fur reflects no colors, so would still appear black.

Answer:

Green and Black.

Explanation:

The white fur reflects all colors, so would appear green.

The black fur reflects no colors, so would still appear black.

When a researcher wants to know if her results are likely caused by something other than chance, she wants to determine the results' ___________.

Answers

Answer:

Reproducibility

Explanation:

The results of an experiment should be reproducible.  By repeating the experiment several times, a confidence interval can be determined that will help establish that the results are real, and not an artefact

IWhat is your mass in kilograms of you weigh 120 pounds?

Answers

One pound is (around, actually it's a little more, but you have to round it down to make the number practically usable) 0.45 kilograms, so 120 pounts is 120* 0.45, which is around 54kg.

A ____________ reaction occurs when a substance is broken down into two or more simpler substances in a chemical reaction.

Answers

Answer: Decomposition

Explanation:

A chemical break down of a reactant into two or more products is known as Decomposition reaction. A substance decomposes to simpler substances.

It can be represented as:

AB → A + B

Example, water breaks down into oxygen and hydrogen

2 H₂O → 2 H₂ + O₂

Thus, the correct answer is:

A Decomposition reaction occurs when a substance is broken down into two or more simpler substances in a chemical reaction.
The reaction is called decomposition reaction in which substance(reactant) breaks down into 2 or more substances (products).

Which of these statements is true? A.
Some molecules may contain no atoms.


B.
Some elements found in nature exist as molecules.


C.
Some compounds include only one type of element.


D.
Some atoms are made of two or more different elements.

Answers

B). Some elements found in nature exist as molecules. 
That is, their atoms travel around in bound pairs. 
Examples are Hydrogen, Oxygen, and Nitrogen.

A). No.  Without atoms, you can't make a molecule.

C). No.  A compound is a chemical combination of two or more elements.

D). No.  An atom is the smallest unit of ONE single element.

Hello, your answer is, C. Some compounds include only one type of element.

I hope it helped!
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