Physics Units and Conversions Quiz
29 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the circumference of a circle with an area of 89.42 square inches?

  • 25.00 inches
  • 29.50 inches
  • 33.60 inches (correct)
  • 30.00 inches

What is the interior angle of a regular hexagon?

  • 120 degrees (correct)
  • 60 degrees
  • 150 degrees
  • 90 degrees

According to the Pythagorean theorem, how is the relationship between sides in a right triangle expressed?

  • a + b = c
  • ab = c^2
  • a^2 + b^2 = c^2 (correct)
  • a^2 - b^2 = c^2

What is the x-intercept of the line that passes through the points (1,4) and (4,1)?

<p>5 (D)</p> Signup and view all the answers

In calculus, which branch deals with functions that can be integrated?

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

What is the required power to transfer 90,000 coulombs of charge through a potential rise of 50 volts in one hour?

<p>2500 watts (B)</p> Signup and view all the answers

What type of force pulls a body moving in a circular path away from the center?

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

What is the calculation for stress if a force of 10 N is applied to a circular rod with a diameter of 0.254 m?

<p>82.64 kPa (D)</p> Signup and view all the answers

Which law describes the relationship between current, voltage, and resistance in an electrical circuit?

<p>Ohm's Law (B)</p> Signup and view all the answers

What is the term for the process of repairing tire cracks and punctures by applying a rubber patch and then subjecting it to heat and pressure?

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

Which of the following best describes the term BOD in the context of microbiology?

<p>Biochemical Oxygen Demand (D)</p> Signup and view all the answers

Which law states that for every action, there is always an equal and opposite reaction?

<p>Newton's Third Law (A)</p> Signup and view all the answers

What does the acronym PPE refer to in safety management?

<p>Personal Protective Equipment (B)</p> Signup and view all the answers

What is defined as the ratio of tensile stress to tensile strain and is sometimes called Young's Modulus?

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

What is the equivalent of Joules per second in terms of energy units?

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

What is the ratio of power output to power input of an engine, usually expressed as a percentage?

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

What is the term for the mass over volume measurement of how tightly a material is packed together?

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

What does the term 'junk value' refer to in economics?

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

What is the relationship between vertical distance and horizontal distance often expressed as rise over run?

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

What is the coefficient of restitution for a perfectly elastic collision?

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

What is the unit of luminous intensity?

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

What is the energy something possesses by virtue of its motion?

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

What is the SI unit of energy?

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

This law states that pressure and volume are inversely proportional while temperature remains constant.

<p>Boyle's Law (A)</p> Signup and view all the answers

What is the value of Faraday's constant?

<p>96485 C/mol (D)</p> Signup and view all the answers

What type of mirror curves inward and converges parallel light to a single real focal point?

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

If the Reynolds number is less than 2100, what is the classification of fluid flow?

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

What is the longest side of a right triangle?

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

What refers to the amount of a product made available for sale?

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

Flashcards

Acute Angle

An angle that measures greater than 0 degrees but less than 90 degrees.

Pythagorean Theorem

In a right triangle, the square of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides.

Second Derivative

The rate of change of the first derivative of a function.

Integral Calculus

A branch of calculus that deals with the process of finding integrals of functions.

Signup and view all the flashcards

Register Indirect Addressing Mode

A data transfer instruction where the address of the operand is stored in a register.

Signup and view all the flashcards

Moore's Law

A technological trend that states that the number of transistors on an integrated circuit doubles approximately every two years.

Signup and view all the flashcards

Centripetal Force

The force that keeps an object moving in a circular path and directed towards the center of the circle.

Signup and view all the flashcards

Stress

A measure of the force applied to a material divided by the area over which the force is applied.

Signup and view all the flashcards

Luxury Goods

Goods and services that are desired by people after their basic needs have been met.

Signup and view all the flashcards

Mean

The arithmetic average of a set of numbers.

Signup and view all the flashcards

BOD

The amount of oxygen consumed by bacteria and other microorganisms while decomposing organic matter under aerobic conditions (oxygen present) at a specified temperature.

Signup and view all the flashcards

Engine Efficiency

The ratio of power output to power input of an engine, usually expressed as a percentage.

Signup and view all the flashcards

Fatigue Failure

Failure of a material under repeated cyclic loading, even though the stress levels are below the material's yield strength.

Signup and view all the flashcards

PPE

Personal Protective Equipment

Signup and view all the flashcards

Semiconductor

A material that conducts electrical current under certain conditions, essential for transistors and integrated circuits.

Signup and view all the flashcards

Density

The measurement of how tightly a material is packed together, calculated as mass divided by volume.

Signup and view all the flashcards

Newton's Third Law

For every action, there is always an equal and opposite reaction.

Signup and view all the flashcards

Momentum

The product of an object's mass and its velocity.

Signup and view all the flashcards

Young's Modulus

The ratio of tensile stress to tensile strain, a measure of a material's stiffness.

Signup and view all the flashcards

Probability

The ratio of successful outcomes of an event to the total possible outcomes.

Signup and view all the flashcards

Luminous Intensity Unit

The candela (cd) is the SI unit of luminous intensity, which measures the amount of light emitted by a source in a particular direction.

Signup and view all the flashcards

Kinetic Energy

Kinetic energy is the energy an object possesses due to its motion. It's directly proportional to the object's mass and the square of its velocity.

Signup and view all the flashcards

Perfectly Elastic Collision

A perfectly elastic collision is a collision where kinetic energy is conserved. The coefficient of restitution (COR) for such a collision is 1.

Signup and view all the flashcards

Luminous Flux

Luminous flux is the total amount of visible light emitted by a source. It is measured in lumens (lm).

Signup and view all the flashcards

Converging Lens

A converging lens is a type of convex lens that curves inward at its center. Parallel light rays passing through it converge to a single real focal point.

Signup and view all the flashcards

Ductility

Ductility refers to a material's ability to deform under tensile stress without breaking. It allows metals to be stretched, drawn into wires, or rolled into sheets.

Signup and view all the flashcards

Metalloids

Metalloids, also known as semi-metals, are elements that have properties intermediate between metals and non-metals. They can conduct electricity but not as well as metals.

Signup and view all the flashcards

Bose-Einstein Condensate (BEC)

Satyendra Nath Bose first predicted the Bose-Einstein condensate (BEC) in 1924. BEC is a state of matter in which separate atoms are cooled to near absolute zero and behave as a single entity.

Signup and view all the flashcards

Avogadro's Number

Avogadro's number (NA) is the number of particles (atoms or molecules) in one mole of a substance. Its value is approximately 6.022 × 10^23.

Signup and view all the flashcards

Faraday's Constant

Faraday's constant (F) is the amount of electric charge carried by one mole of electrons. Its value is approximately 96,485 coulombs per mole.

Signup and view all the flashcards

Study Notes

Units and Conversions

  • Unit of luminous intensity is candela
  • Energy possessed by virtue of motion is kinetic energy
  • Coefficient of restitution for perfectly elastic collision is 1
  • Total luminous flux radiated by a 1 candela source is 1 lumen
  • Minor that curves inward, converging parallel light to a single focal point is a concave lens
  • Property that allows metal to be rolled without breaking is ductility
  • Elements with properties intermediate between metals and non-metals are metalloids
  • Person who predicted Bose-Einstein condensate in 1924 was Satyendra Nath Bose
  • Value of Avogadro's number approximately is 6.022 x 1023 mol-1
  • Faraday's constant is the charge per mole of electrons (96,485 Coulombs/mole)
  • Branch of engineering mechanics that studies stationary rigid bodies is statics
  • Product of a scalar and a vector is a vector
  • Unit of force, Newton, is equivalent to kg⋅m/s2
  • Time rate of change of velocity is acceleration
  • Parallel forces with same magnitude but opposite senses are called a couple
  • Process with constant temperature is isothermal
  • Law stating pressure and volume are inversely proportional while temperature remains constant is Boyle's Law

Pressure, Energy, and Fluid Flow

  • 1 atm is equivalent to 101,325 Pascals
  • SI unit of energy is the joule
  • Principle stating energy cannot be created or destroyed, only transferred is the law of conservation of energy
  • Reynolds number less than 2100 indicates laminar flow
  • Volumetric flow rate (Q) is equal to the area (A) multiplied by the velocity (V). Q = A * V
  • Unit for resistance of fluid flow is the poiseuille (Pa·s)
  • Surface tension causes raindrops to be spherical
  • Low NPSHa compared to NPSHr in centrifugal pumps causes cavitation
  • Amount of product available for sale is supply
  • Uniform series of equal payments is an annuity
  • Combination of carbon and iron is steel
  • Ratio of maximum load to original cross-sectional area in tension test is stress
  • Longest side of a right triangle is the hypotenuse
  • Solutions for two simultaneous linear equations involving x and y are determined by solving the resulting equations.
  • Factors of a² - x² are (a-x) and (a+x )
  • The logarithm of the product of two numbers is equal to the sum of the logarithms of the numbers
  • Number of ways to arrange 6 distinct books in a bookshelf is 720 (6!)

Mechanics, Geometry, and Thermodynamics

  • A coin tossed 3 times, the probability of getting 3 tails is 1/8
  • Angles between 0° and 90° are acute angles
  • Circumference of a circle with area 89.42 square inches is 47.07 inches
  • Interior angle of a hexagon is 120°
  • Theorem stating that in right triangles the sum of squares of sides is equal to square of hypotenuse is the Pythagorean theorem
  • X intercept of line passing through points (1,4) and (4,1) is 5

Additional Topics

  • Data transfer instruction using register indirect addressing mode is used in assembly language programming
  • Intel 8085 fabricated as a 40-pin DIP IC is true
  • Technological trend where transistor power density remains constant despite smaller size is Moore's Law; power density may not always stay constant.
  • Power required to transfer charge through potential rise is dependent on the Coulombs of charge (Q), the voltage (V), and time interval (t); Power (P) = Q *V / t
  • Force pulling body from circular path is centripetal force
  • Force per unit area is stress
  • Ratio of successful outcome to total possible outcomes is probability
  • Expression of power output relative to input is efficiency
  • Material failure under repeated loading is fatigue
  • PPE is personal protective equipment, protecting workers on the job.
  • Used in electronic devices, conducting electrical current under certain conditions is a semiconductor
  • Mass per unit volume is density
  • Statement for every action there is an equal and opposite reaction is Newton's Third Law of Motion
  • Product of mass and velocity is momentum
  • Ratio of tensile stress to tensile strain is Young's Modulus.
  • Amount of 12,800 Philippine Pesos invested at 5% compounded quarterly for 4 years is a simple or compound interest problem that can be solved using the compound interest formula.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Quiz Team

Related Documents

Test 9 PDF

Description

Test your knowledge on fundamental physics units and conversions with this quiz. Covering topics like kinetic energy, luminous intensity, and properties of materials, this quiz will help you reinforce your understanding of key concepts in physics. Perfect for students of all levels!

More Like This

Use Quizgecko on...
Browser
Open
Browser
Browser