Modern Physics Review

Which particle has a charge of +2/3e?

• an up quark

• a down quark

• a strange quark

• a muon

A particle that is made out of three quarks is a

• boson

• baryon

• lepton

• meson

_____________ is the force that binds protons together in the nucleus of an atom.

• Gravity

• Electromagnetism

• Strong Nuclear Force

• Weak Force

When two small nuclei combine into a larger nucleus.

• fission

• fusion

• alpha decay

• beta decay

Complete the nuclear equation and determine the type of decay that is occurring in this reaction. 

• alpha
• beta
• gamma
• none

Most of the mass of an atom is located in the...

• isotopes

• electrons

• nucleus

• electric charge

What is the energy equivalent of a mass of 0.026 kilogram?

• 2.34 X 10¹⁵ J

• 9 X 10¹⁶ J

• 1.14 X 10^-30 J

• 1.8 X 10¹² J

What color of light has the greatest energy per photon?

• Red

• Green

• Blue

• Violet

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

NGSS.HS-PS4-4

What is the energy of a photon with with a wavelength of 650 nm (650x10^-9 m)?

• 5.23x10¹⁵ J

• 3.2x10³ J

• 4.23x10^-15 J

• 3.0x10^-19 J

Tags

NGSS.HS-PS4-1

What is the frequency of UV light that has an energy of 2.39 × 10 ^-18 J? 

• 2.32 x 10⁹ Hz
• 3.60 x 10¹⁵ Hz
• 1.58 x 10^-51 Hz
• 3 x 10⁸  m/s

Tags

NGSS.HS-PS4-1