University Admission Test Prep

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Questions and Answers

Why is carbon considered an irreplaceable element for life as we understand it?

  • It is tetravalent.
  • It is abundant in Earth's crust.
  • It is one of the most abundant elements in the universe.
  • It is extremely abundant in living organisms.
  • It forms more chemical compounds than any other element. (correct)

A 10W lightbulb operating at 4V is switched on for 10 seconds. What is the total charge passing through the filament?

  • 1 C
  • 100 C
  • 25 C (correct)
  • 10 C
  • 4 C

Which physical quantity cannot be used by a measuring instrument to detect temperature changes?

  • Level of a liquid in a vertical pipe.
  • Electrical resistance of a metal wire.
  • Length of a metal wire.
  • Mass of a gas at constant pressure. (correct)
  • Pressure of a gas at constant volume.

Three moles of $H_2O$ are fully dissociated in an electrolytic cell, and the reaction products collected separately while the pressure remains constant. What is the approximate ratio of volume containing hydrogen to volume containing oxygen?

<p>2 (C)</p> Signup and view all the answers

Body 1 has a negative electric charge, while body 2 is neutral. Experiments with bodies 3, 4, 5, and 6 show that: a) 3 attracts 2; b) 4 repels 3; c) 5 attracts 4 and repels 6; d) 6 attracts 1

The signs of the electric charges on bodies (3, 4, 5, 6) are respectively:

<p>(-, +, +, -) (D)</p> Signup and view all the answers

A block is free to move on a frictionless horizontal plane. A constant force F of 10N acts on the block at an angle 9 = 30° to the vertical. Find the work done by force F (W) and the work done by the table's reaction force (W') required to move the block 2 m ?

<p>W = 5√3 J, W = 0 J (E)</p> Signup and view all the answers

A charged particle enters a region of uniform magnetic field at right angles to the field direction and moves in a circle of radius R with period T. If the particle's velocity doubles, what are the new radius R' and period T' of the orbit?

<p>R' = 2R, T' = T (A)</p> Signup and view all the answers

A particle moves in uniform circular motion under a centripetal force. How must the force be changed in order to double the radius of the orbit without changing the particle’s speed?

<p>1/2 (E)</p> Signup and view all the answers

Which one of the following statements about optics is incorrect?

<p>The angular deviation of a beam of light refracted at the interface between air and glass depends on the wavelength. (A)</p> Signup and view all the answers

A given quantity of heat is supplied to two bodies of equal mass, initially at thesame temperature, made of glass and copper respectively. The specific heat of the glass is greater than that of the copper. It follows from these premises that:

<p>the body of copper will have a final temperature greater than that of the body of glass. (C)</p> Signup and view all the answers

The atoms constituting a solid:

<p>vibrate around their equilibrium position (C)</p> Signup and view all the answers

A sphere of radius r is uniformly charged. At a distance d from the center of the sphere that is significantly larger than r, the force on a single electron follows what type of relationship?

<p>Follows inverse square, related to charge distribution. (B)</p> Signup and view all the answers

Given that the wavelength is given by (\lambda), the distance between a crest and valley for a wave on the lake is given by what value?

<p>λ/2 (B)</p> Signup and view all the answers

A car travels at a constant linear velocity with the tire of effective radius 20 cm. Supposing the car's velocity doubles, what is the energy gained per second?

<p>The tire's kinetic energy changes, depending on mass (B)</p> Signup and view all the answers

Given some force and a ramp, to slide a block up at 30 degrees with some speed, it reaches an amplitude of value h. What is that with the system inverted?

<p>One fourth as high, keep to same angular force. (C)</p> Signup and view all the answers

The period of a pendulum consisting of a mass m suspended from a string of length 1:

<p>decreases by shortening the wire. (B)</p> Signup and view all the answers

Two body is that and of volume mass, where volume in a set. When the masses are held together. What can then, is about the force?

<p>Equal weight of mass A (E)</p> Signup and view all the answers

Which of the following is a correct assumption about conservation?

<p>Depends, if it possible. (A)</p> Signup and view all the answers

From a cannon on top of a boat at sea, with different launches the time is different. Is that all?

<p>That, depends. (E)</p> Signup and view all the answers

What's what?

<p>Hard when the answer is that which is most different within a set (D)</p> Signup and view all the answers

According to the provided text, what is this booklet's primary function?

<p>To offer strategies mentioned in the text (B)</p> Signup and view all the answers

What is the recommended approach to using the booklet?

<p>Begin with the first question and follow the page indications after each answer (C)</p> Signup and view all the answers

According to the mentor's preface, why do physics and chemistry undergraduate programs often vary for students in Italy?

<p>Secondary education institutions in Italy have heterogeneous standards and curricula (B)</p> Signup and view all the answers

Why did the manual separate knowledge from skills?

<p>To facilitate a step-by-step approach to learning and revision (C)</p> Signup and view all the answers

What should a student do if they struggle with some specific content?

<p>Consult academic study guides or textbooks related to the syllabus (D)</p> Signup and view all the answers

What is the primary goal if a student finds some question difficult?

<p>Identification and strengthening of weaker areas (C)</p> Signup and view all the answers

Which of the following topics is NOT explicitly listed as a prerequisite for the closed answer problems?

<p>Electricity (C)</p> Signup and view all the answers

What is assumed regarding chemical nomenclature for stoichiometry within the problems?

<p>Knowledge of common formulas and equations (A)</p> Signup and view all the answers

What concept regarding acids and bases is expected?

<p>Definition of simple acid-base system and pH (C)</p> Signup and view all the answers

What is meant in the guide when it refers to oxidation-reduction?

<p>Understanding on a fundamental level along with elemental reaction (C)</p> Signup and view all the answers

According to the manual regarding mentor, how are the explanation for the different questions identified?

<p>Each explanation of responses are a black hand pointing to the number (A)</p> Signup and view all the answers

When guidance states to proceed in the same page, what does this mean in its mentor?

<p>There's a final explanation and the page to continue in the next turn (C)</p> Signup and view all the answers

Regarding the test content, what is assumed about the 'texts destined for classical high school?'

<p>They should be suitable for the scope (C)</p> Signup and view all the answers

Who are the curators for science, physical and chemical?

<p>Roberto Piazza and Paolo Sarti (A)</p> Signup and view all the answers

Who are the revisors?

<p>Claudio Beccari, Claudio Casorosa (A)</p> Signup and view all the answers

Who are the organization team?

<p>Giuseppe, Giorgio (B)</p> Signup and view all the answers

Who is the author for layout?

<p>Claudio B (C)</p> Signup and view all the answers

What does the quantity pVg stand for?

<p>Archimede's Thrust volume in a gas (B)</p> Signup and view all the answers

Who is professor Andrea Stella?

<p>President (D)</p> Signup and view all the answers

Who is professor Bianca Maria Lombardo?

<p>Vice president (C)</p> Signup and view all the answers

According to the curators, which disciplines fall under the 'Scienze fisiche e chimiche' category?

<p>Roberto Piazza and Paolo Sarti. (C)</p> Signup and view all the answers

In the context of this booklet, what is implied when the guidance mentions proceeding on the same page?

<p>To continue to work on the problem described. (A)</p> Signup and view all the answers

What concept is the guide assuming students are familiar with regarding the reactions of elements?

<p>Basic understanding of reduction oxidation. (A)</p> Signup and view all the answers

Who is coordinator for the mathematics section?

<p>Glaconda Moscarlello (D)</p> Signup and view all the answers

What knowledge is expected regarding chemical formulas and equations?

<p>Assumes students knows. (A)</p> Signup and view all the answers

What does the booklet assume about the level of math education for students using it?

<p>Liceo Classico. (A)</p> Signup and view all the answers

What constitutes an essential element for test effectiveness?

<p>Question difficulty and time limits. (B)</p> Signup and view all the answers

Why did the booklet choose to separate knowledge from skills?

<p>Because They are both essential, but better addressed separately. (D)</p> Signup and view all the answers

What is indicated next to each answer in the mentor?

<p>Page reference. (C)</p> Signup and view all the answers

According to the manual, what can be inferred if a student consistently answers a particular type of question incorrectly?

<p>Lack in knowled. (A)</p> Signup and view all the answers

Which type of questions does the course specifically refers as required?

<p>Close. (B)</p> Signup and view all the answers

What should happen first when begin the first question?

<p>Read and choose. (B)</p> Signup and view all the answers

According to this document, is the booklet to simulate testing?

<p>No, this book is designed. (B)</p> Signup and view all the answers

What should a students can start do?

<p>The mentor questions begin the study. (A)</p> Signup and view all the answers

For the mentor, if the answer is wrong what happen?

<p>It moves backward. (B)</p> Signup and view all the answers

In which year was edition CISIA?

<p>2015 (A)</p> Signup and view all the answers

Which sciences has collection Mentor?

<p>Both. (C)</p> Signup and view all the answers

What kind of books they refers?

<p>Classics books. (A)</p> Signup and view all the answers

How was the test inspire it?

<p>A book old. (D)</p> Signup and view all the answers

What did convinction in presence technique?

<p>Cognitive. (A)</p> Signup and view all the answers

Flashcards

Why is carbon unique?

Carbon is unique because it forms more chemical compounds with itself and other elements than any other element.

What is the purpose of this booklet?

To practice answering multiple choice questions on specific topics.

Scalar quantity

Magnitude possessing only a numerical value.

What is a vector quantity?

A vector requires both magnitude and direction.

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What is wavelength?

Distance after which wave returns to initial state.

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Crest to trough distance

Distance between crest and following trough; equals (\frac{λ}{2}).

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What is heat?

Energy transferred between systems due to temperature differences.

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What is specific heat?

A measure of a material's resistance to temperature change.

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Atomic motion in solids

Atoms vibrate around a fixed point.

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What is density?

The ratio of mass to volume.

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What is specific weight?

The measure of weight per unit volume.

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What is specific weight?

The weight of an object per unit volume.

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In which phase is it not possible to measure density?

When the substance is in a completely gaseous state

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What happens during an exothermic reaction?

Releases heat and is hot to the touch

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What is a characteristic of the creation of morning frost

No chemical reaction is caused

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The movement of atoms that make up a solid

Atoms vibrate in place.

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What is a chemical combination?

A combination of elements

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Energy Transformations Conservation.

Ratio of kinetic energy to potential energy changes.

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What is refraction?

Light bends due to varying speeds.

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What is temperature?

The measure of the total Kinetic Energy (K)

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What is a phase?

An area with same properties

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Uniform velocity

The speed is constant.

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A Magnesium

A positive charge.

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The force outside

The electric field is zero.

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Weight and FreeFall

More weight is the same acceleration.

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What helps represent motion is

A line that represents a time

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What is the relationship between Snell law and light

The angle of a light from one form to another.

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what are some characteristics of a laser?

A way to generate a source that emits light

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Study Notes

Mentor and Test Overview

  • This booklet is for self-study and to practice answering multiple-choice questions on topics typically covered in university admission tests.
  • The booklet requires reading pages out of sequence.
  • Starts with the first question, read the text, and choose an answer then go to the page indicated at the end of the answer.
  • If the answer is correct, confirmation and additional information are provided.
  • If incorrect, an explanation of why it's wrong is given.
  • Physical science covered includes mechanics, optics, thermodynamics, and electromagnetism.
  • Chemical Science includes matter structure, chemical symbols, stoichiometry, organic chemistry, solutions, and oxidation-reduction.
  • Questions and explanations are mixed randomly, with a manual directing to the correct page.
  • Answering incorrectly indicates a gap in knowledge/skill, requiring further study and repetition of the section involved.
  • Correct answers indicate sufficient knowledge, but might still require further theory review or exercises to build experience.
  • The method is inspired by a book from the 1960s, emphasizing individual cognitive experiences in learning.

Test Content

  • Mechanics involves scalar and vector quantities, measurement units, and fundamental physics.
  • Basic physics entities are addressed such as displacement, velocity, acceleration, mass, momentum, force, weight, work, and power.
  • Laws of inertia, Newton's laws, and action-reaction principles are also included.
  • Optics covers geometric principles, reflection, refraction, refractive index, prisms, concave and convex mirrors/lenses and the use of lens systems.
  • Thermodynamics includes temperature, heat, specific heat, expansion, ideal gas equations, and basic thermodynamic principles.
  • Electromagnetism includes electrostatics (Coulomb's law, electric fields, capacitors, potential difference/voltage) and magnetostatics (electric current, Ampère's/Lentz's/Faraday's laws, Ohm's/Joule's laws, magnetic fields).
  • Electromagnetic radiation is also needed.
  • The structure of matter involves atoms and molecules, including basic atomic constituents, the periodic table, ion compounds, and characteristics like water and air.
  • Chemical symbols, formulas, and equations are assumed to have been learned.
  • Stoichiometry requires knowledge of moles and calculations.
  • Organic chemistry includes the simplest carbon compounds.
  • Solutions include acid-base systems and pH.
  • Oxidation-reduction covers basic oxidation and reduction and combustion reactions.

Quesito 1 (Question 1)

  • Option A is incorrect because carbon abundance is not the sole requirement for it to be important.
  • Carbon is the element that forms the most chemical compounds with itself and other elements.

Quesito 2

  • If tension is connected to lamps, you need to know about circuits
  • If power is multiplied by time, you will get energy

Quesito 3

  • Option B The electrical resistance depends on the temperature
  • In gas, mass remains is the only consistent variable

Quesito 4

  • The mole ratio relates to stoichiometric ratios
  • Oxygen in gas form is a molecule

Quesito 5

  • Need to clarify the type for electric charge

Quesito 6

  • The weight is what makes the slope work, so test that calculation to prove

Quesito 7

  • If one half or another is halved, then speed will remain constant, will it seem?

Quesito 8

  • The radius of trajectory is proportional to velocity

Quesito 9

  • The prism is used because energy and light cannot escape one another

Quesito 10

  • Be able to discriminate a different result with temperatures

Quesito 11

  • There's something definitely rotational

Quesito 12

  • Water is a noncompressible liquid and flows with force; what other way can the question be done?

Quesito 13

  • One is on the right path yet there are errors to the maths
  • Think about the period of time if it's a kilometer

Quesito 14

  • You can't think of something at all

Quesito 15

  • Three that remain in the parallel state

Quesito 16

  • It's really not right, so one would ask yourself what is going wrong?

Quesito 17

  • They're doing more but it is no such thing

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