Recent

  • Show all results for ""
Physics Units Flashcards
60 Questions
100 Views

Physics Units Flashcards

Created by
@LuminousGadolinium

Questions and Answers

What is the unit of mass?

  • Joules (J)
  • kilogram (kg) (correct)
  • Newtons (N)
  • meters per second (m/s)

    • What is the unit of time?

    seconds (s)

    What is the unit of speed?

    meters per second (m/s)

    What is the unit of velocity?

    <p>meters per second (m/s)</p> Signup and view all the answers

    What is the unit of average velocity?

    <p>meters per second (m/s)</p> Signup and view all the answers

    What is the unit of initial velocity?

    <p>meters per second (m/s)</p> Signup and view all the answers

    What is the unit of final velocity?

    <p>meters per second (m/s)</p> Signup and view all the answers

    What is the unit of acceleration?

    <p>meters per second squared (m/s^2)</p> Signup and view all the answers

    What is the unit of force?

    <p>Newtons (N)</p> Signup and view all the answers

    What is the unit of net force?

    <p>Newtons (N)</p> Signup and view all the answers

    What is the unit of distance?

    <p>meters (m)</p> Signup and view all the answers

    What is the unit of displacement?

    <p>meters (m)</p> Signup and view all the answers

    What is the unit of momentum?

    <p>kilogram meters per second (kgm/s)</p> Signup and view all the answers

    What is the unit of impulse?

    <p>Newton seconds (Ns)</p> Signup and view all the answers

    What is the unit of change in momentum?

    <p>Newton seconds (Ns)</p> Signup and view all the answers

    What is the unit of normal force?

    <p>Newtons (N)</p> Signup and view all the answers

    What is the unit of weight?

    <p>Newtons (N)</p> Signup and view all the answers

    What is the unit of force of gravity?

    <p>Newtons (N)</p> Signup and view all the answers

    What is the unit of force of friction?

    <p>Newtons (N)</p> Signup and view all the answers

    What is the unit of force of tension?

    <p>Newtons (N)</p> Signup and view all the answers

    What is the unit of drag force?

    <p>Newtons (N)</p> Signup and view all the answers

    What is the unit of lift force?

    <p>Newtons (N)</p> Signup and view all the answers

    What is the unit of applied force?

    <p>Newtons (N)</p> Signup and view all the answers

    What is the unit of traction force?

    <p>Newtons (N)</p> Signup and view all the answers

    What is the unit of spring force?

    <p>Newtons (N)</p> Signup and view all the answers

    What is the unit of electrostatic force?

    <p>Newtons (N)</p> Signup and view all the answers

    What is the unit of coefficient of kinetic friction?

    <p>unitless</p> Signup and view all the answers

    What is the unit of coefficient of static/kinetic friction?

    <p>unitless</p> Signup and view all the answers

    What is the unit of centripetal acceleration?

    <p>meters per second squared (m/s^2)</p> Signup and view all the answers

    What is the unit of centripetal force?

    <p>Newtons (N)</p> Signup and view all the answers

    What is the unit of work?

    <p>Newton-meters (Nm), Joules (J)</p> Signup and view all the answers

    What is the unit of power?

    <p>Watts (W), Newton meters per second (Nm/s), Joules per second (J/s)</p> Signup and view all the answers

    What is the unit of gravitational potential energy?

    <p>Joules (J)</p> Signup and view all the answers

    What is the unit of elastic potential energy?

    <p>Joules (J)</p> Signup and view all the answers

    What is the unit of kinetic energy?

    <p>Joules (J)</p> Signup and view all the answers

    What is the unit of internal energy?

    <p>Joules (J)</p> Signup and view all the answers

    What is the unit of mechanical energy?

    <p>Joules (J)</p> Signup and view all the answers

    What is the unit of electrical energy?

    <p>Joules (J)</p> Signup and view all the answers

    What is the unit of energy of a photon?

    <p>electronvolt (eV), Joules (J)</p> Signup and view all the answers

    What is the unit of wave velocity/speed?

    <p>meters per second (m/s)</p> Signup and view all the answers

    What is the unit of wavelength?

    <p>meters (m)</p> Signup and view all the answers

    What is the unit of frequency?

    <p>Hertz (Hz)</p> Signup and view all the answers

    What is the unit of speed of light?

    <p>meters per second (m/s)</p> Signup and view all the answers

    What is the unit of spring constant?

    <p>Newtons per meter (N/m)</p> Signup and view all the answers

    What is the unit of voltage?

    <p>Volts (V)</p> Signup and view all the answers

    What is the unit of current?

    <p>Amperes, Amps (A)</p> Signup and view all the answers

    What is the unit of resistance?

    <p>Ohms (Ω)</p> Signup and view all the answers

    What is the unit of cross-sectional area of a wire?

    <p>square meters (m^2)</p> Signup and view all the answers

    What is the unit of charge?

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

    What is the unit of index of refraction?

    <p>unitless</p> Signup and view all the answers

    What is the unit of resistivity?

    <p>Ohm meters (Ωm)</p> Signup and view all the answers

    What is the unit of angle of incidence?

    <p>degrees (^o)</p> Signup and view all the answers

    What is the unit of angle of refraction?

    <p>degrees (^o)</p> Signup and view all the answers

    What is the unit of instantaneous velocity?

    <p>meters per second (m/s)</p> Signup and view all the answers

    What is the unit of average velocity?

    <p>meters per second (m/s)</p> Signup and view all the answers

    What is the unit of mean radius of Earth/Moon?

    <p>meters</p> Signup and view all the answers

    What is the unit of Planck's constant?

    <p>Joule-second</p> Signup and view all the answers

    What is the unit of universal gravitational constant?

    <p>Newton meters squared per kilograms squared</p> Signup and view all the answers

    What is the unit of electrostatic constant?

    <p>Newton meters squared per Coulombs squared</p> Signup and view all the answers

    What is the unit of elementary charge?

    <p>Coulombs</p> Signup and view all the answers

    Study Notes

    Physics Units Overview

    • Mass is measured in kilograms (kg), a fundamental property of matter.
    • Time is quantified in seconds (s), the basic unit for measuring duration.
    • Speed is expressed in meters per second (m/s), representing distance traveled per unit of time.
    • Velocity, like speed, is also in meters per second (m/s) but includes direction.
    • Average velocity is consistent with meters per second (m/s), calculated over a time interval.
    • Initial velocity and final velocity, both in meters per second (m/s), indicate speeds at distinct moments.

    Motion and Forces

    • Acceleration is measured in meters per second squared (m/s²), indicating the rate of change of velocity.
    • Force is quantified in Newtons (N), a vector that results from mass and acceleration (F=ma).
    • Net force (also in Newtons (N)) is the vector sum of all forces acting on an object.
    • Distance and displacement are both measured in meters (m), with displacement accounting for direction.
    • Momentum is defined as kilogram meters per second (kgm/s), representing the product of mass and velocity.
    • Impulse can be expressed in Newton seconds (Ns) or kilogram meters per second (kgm/s), correlating to changes in momentum.

    Types of Forces

    • Various forces such as normal force, weight, gravity, friction, and tension are all measured in Newtons (N).
    • Drag force and lift force are also quantified in Newtons (N), related to fluid dynamics.
    • Applied force and traction force influence motion and are measured in Newtons (N).
    • Spring force follows Hooke's law and is measured in Newtons (N).
    • Electrostatic force is equally measured in Newtons (N), governing interactions between charged particles.

    Friction and Motion

    • The coefficient of kinetic friction is a unitless value representing the friction's effectiveness when an object is sliding.
    • The coefficient of static/kinetic friction is also unitless, indicating the ratio of frictional force to normal force at rest or in motion.
    • Centripetal acceleration is described in meters per second squared (m/s²), essential for objects in circular motion.
    • Centripetal force keeps objects moving in a circle and is measured in Newtons (N).

    Energy and Work

    • Work is measured in Newton-meters (Nm) or Joules (J), essential in energy transfer calculations.
    • Power is expressed in Watts (W), Newton meters per second (Nm/s), or Joules per second (J/s), indicating energy transfer rate.
    • Various forms of energy such as gravitational potential energy, elastic potential energy, kinetic energy, internal energy, mechanical energy, and electrical energy are all measured in Joules (J).
    • Energy of a photon can be expressed as electronvolt (eV) or Joules (J), significant in quantum physics.

    Waves and Electrical Concepts

    • Wave velocity/speed is quantified in meters per second (m/s), related to frequency and wavelength.
    • Wavelength is measured in meters (m), representing the distance between successive peaks in a wave.
    • Frequency is expressed in Hertz (Hz), indicating the number of cycles per second.
    • The speed of light is a fundamental constant measured in meters per second (m/s).
    • Spring constant is measured in Newtons per meter (N/m), indicating the stiffness of a spring.
    • Voltage is quantified in Volts (V), representing electric potential difference.

    Electric Characteristics

    • Current is measured in Amperes (A), representing the flow rate of electric charge.
    • Resistance is expressed in Ohms (Ω), indicating how strongly a material opposes current.
    • The cross-sectional area of a wire is measured in square meters (m²), affecting resistance and current flow.
    • Charge is quantified in Coulombs (C), a fundamental property of electrons and protons.
    • Index of refraction is a unitless number representing how light propagates through different mediums.
    • Resistivity is expressed in Ohm meters (Ωm), indicating how strongly a material resists current flow.

    Angles in Optics

    • The angle of incidence and angle of refraction are both measured in degrees (°), crucial in determining how light interacts with surfaces.

    Special Constants

    • Planck's constant is expressed as Joule-second, fundamental in quantum mechanics.
    • The universal gravitational constant is measured in Newton meters squared per kilograms squared, essential for gravitational calculations.
    • The electrostatic constant is expressed in Newton meters squared per Coulombs squared, governing electric force interactions.
    • Elementary charge is defined in Coulombs (C), representing the basic unit of electric charge.

    Studying That Suits You

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

    Quiz Team

    Description

    Test your knowledge of essential physics units with these flashcards. Each card presents a fundamental physics term alongside its standard unit of measurement. Perfect for students looking to reinforce their understanding of physics concepts!

    More Quizzes Like This

    Physics: Units and Measurement Quiz
    10 questions

    Physics: Units and Measurement Quiz

    GladAluminium avatar
    GladAluminium
    Units of Measurement in Physics
    5 questions

    Units of Measurement in Physics

    GiftedColumbus avatar
    GiftedColumbus
    Physics Chapter 2.1: Physical Quantities and Units
    17 questions

    Physics Chapter 2.1: Physical Quantities and Units

    ThrivingDune avatar
    ThrivingDune
    Units and Measurements in Physics
    10 questions

    Units and Measurements in Physics

    SmartVision avatar
    SmartVision
    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser