1. Intro to Physics Units

Which of the following is the correct SI unit for acceleration?

Why is physics considered to be the basic science?

The atomic mass of $14C$ is $14.003242$ u. Show that the ${\beta }^{-}$ decay of $14C$ is energetically possible, and calculate the energy released in the decay.

A powerboat is operating at night. Which of the following lights must be displayed according to standard navigation rules?

The earth's circumference is approximately 40.1 Mm (megameters). What is this circumference in kilometers?

Astronomers often detect radio waves with wavelengths of 3,000,000,000 nm. What is this wavelength expressed in decameters (dam)?

Rewrite 0.00016 kg in scientific notation.

Rewrite 299,800,000 m/s in scientific notation.

Rewrite 3.41 × 10⁻⁴ in standard form:

Rewrite 9.98 × 10⁷  in standard form.

The position of an object is given by 𝓍 = At + Bt², where 𝓍 is in meters and t is in seconds. What are the units of A and B?

Write the following numbers in powers of 10 notation: 0.219.

Write out the following numbers in full with the correct number of zeros: 2.5 x 10⁻¹

Time intervals measured with a physical stopwatch typically have an uncertainty of about 0.2 s, due to human reaction time at the start and stop moments. What is the percent uncertainty of a hand-timed measurement of 4.5 min?