Physics Measurements Quiz
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Questions and Answers

What is the SI unit of temperature?

  • Fahrenheit (°F)
  • Kelvin (K) (correct)
  • Celsius (°C)
  • Rankine (°R)

    • What is the SI unit of energy?

  • Joule (J)
  • Calorie (cal)
  • Electron volt (eV)
  • All of the above (correct)

    • What is the SI unit of pressure?

  • Pascal (Pa)
  • Atmosphere (atm)
  • Bar
  • All of the above (correct)

    • What SI unit is used to measure time?

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

    What is the equivalent of 1 horsepower in watts?

    <p>746 watts</p> Signup and view all the answers

    1 Btu/h is equivalent to how many watts?

    <p>0.293 watts</p> Signup and view all the answers

    How many dynes are equal to 1 Newton?

    <p>$10^{5}$ dynes</p> Signup and view all the answers

    1 radian is equivalent to ______ degrees.

    <p>57.30</p> Signup and view all the answers

    1 km/h is equal to how many meters per second (m/s)?

    <p>0.2778 m/s (A)</p> Signup and view all the answers

    What is the equivalent of 1 ft/s$^2$ in m/s$^2$?

    <p>0.3048 m/s$^2$</p> Signup and view all the answers

    Study Notes

    Temperature

    • °C = 5/9 (°F - 32)
    • °F = (9/5 °C) + 32
    • K = °C + 273.15
    • 0°C = 273.15°C
    • 0°K = -459.67°F

    Energy

    • 1 J = 1 kg⋅m²/s²
    • 1 J = 0.23901 cal
    • 1 cal = 4.186 J
    • 1 eV = 1.602 x 10⁻¹⁹ J
    • 1 kWh = 3.60 x 10⁶ J

    Pressure

    • 1 Pa = 1 N/m²
    • 1 Pa = 1 kg/m⋅s²
    • 1 atm = 101,325 Pa
    • 1 atm = 1.013 x 10⁵ Pa
    • 1 bar = 10⁵ Pa
    • 1 torr = 1 mmHg
    • 1 mmHg = 133 N/m²
    • 1 psi = 6895 Pa
    • 1 lb/in² = 6895 Pa
    • 1 lb/ft² = 47.88 Pa

    Time

    • 1 min = 60 sec
    • 1 hr = 60 min
    • 1 hr = 3600 sec
    • 1 day = 86,400 s
    • 1 wk = 7 days
    • 1 yr = 365.25 days
    • 1 decade = 10 yrs
    • 1 century = 100 yrs

    Power

    • 1 W = 1 J/s
    • 1 hp = 746 W
    • 1 hp = 550 ft⋅lb/s
    • 1 Btu/h = 0.293 W

    Force

    • 1 N = 10⁵ dyne
    • 1 N = 0.2248 lb
    • 1 lb = 4.448 N
    • 1 lb = 4.448 x 10⁵ dyne

    Angle

    • 1 rad = 57.30° = 180°/π
    • 1° = 0.01745 rad
    • 1 revolution = 360° = 2π rad
    • 1 rev/min (rpm) = 0.1047 rad/s

    Speed

    • 1 m/s = 3.281 ft/s
    • 1 ft/s = 0.3048 m/s
    • 1 mi/min = 88 ft/s
    • 1 km/h = 0.2778 m/s
    • 1 mi/h = 1.467 ft/s
    • 1 mi/h = 0.4470 m/s
    • 1 mi/h = 1.609 km/hr
    • 1 furlong/fortnight = 1.622 x 10⁻⁴ m/s

    Acceleration

    • 1 m/s² = 100 cm/s²
    • 1 m/s² = 3.281 ft/s²
    • 1 cm/s² = 0.01 m/s²
    • 1 cm/s² = 0.03281 ft/s²
    • 1 ft/s² = 0.348 m/s²
    • 1 ft/s² = 30.48 cm/s²
    • 1 mi/hr = 1.467 ft/s²

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    Description

    Test your understanding of key physics measurements including temperature conversions, energy units, and pressure calculations. This quiz will cover various fundamental concepts and their applications in real-world scenarios.

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