Modern Physics Review

Match the following quantities to their symbols.

• speed of light in a vacuum

• c

• wavelength

• h

• frequency

• λ

• Planck's constant

• energy of a photon

• f

Tags

NGSS.HS-PS4-1

Match the following quantities with their units

• meters, m

• energy of a photon

• joules, J

• frequency of a photon

• joules seconds, Js

• Planck's constant

• Hertz, Hz

• speed of light

• meters per second, m/s

• wavelength of a photon

Tags

NGSS.HS-PS4-1

Electrons are...

• Hadrons

• Quarks

• Leptons

• Baryons

An anti-up quark has charge of...

• -2/3 e

• +2/3 e

• -1/3 e

• +1/3 e

A proton is...

Choose all that apply

• Baryon

• Hadron

• Matter

• Meson

The quark composition of a proton is...

• uud

• udd

• uds

The energy required for an electron to jump from ground state to n = 3 is...

• 12.09 eV

• 10.2 eV

• 10.2 J

• 1.89 J

Tags

NGSS.HS-PS3-1

How much energy will be released if 1 kg of mass is converted to energy?

Tags

NGSS.HS-PS1-8

Convert 10 eV to joules.

How many megaelectronvolts are in on universal mass unit, u?

• 931 MeV