AP Physics Essentials: Conservation of Charge in Nuclear Reactions

Mr. Anderson explains the conservation of charge in nuclear reactions, focusing on examples like uranium fission, alpha decay, and beta decay. He emphasizes that charge is conserved in these reactions, even when elementary particles are created or destroyed. The video covers the transformation of particles and the importance of charge and mass conservation in nuclear processes.

What is the primary focus of nuclear reactions in terms of charge?

• Photons

• Neutrinos

• Protons and neutrons

• Electrons

In the fission of uranium-235, what is the charge of the neutron involved?

• Positive

• Negative

• Zero

• Variable

What is conserved in nuclear reactions according to the video?

• Only charge

• Only mass

• Both charge and mass

• Neither charge nor mass

What particle is emitted during alpha decay?

• Neutrino

• Alpha particle

• Proton

• Electron

What is the charge of an alpha particle?

• Two minus

• Two plus

• One plus

• Zero

In beta minus decay, what transformation occurs inside the nucleus?

• Photon to neutrino

• Electron to positron

• Neutron to proton

• Proton to neutron

What is emitted alongside an electron in beta minus decay?

• Electron anti-neutrino

• Neutrino

• Proton

• Positron

What is produced in beta plus decay?

• Photon

• Positron

• Neutron

• Electron

What is the charge of a positron?

• Negative

• Zero

• Positive

• Variable

What accompanies a positron in beta plus decay?

• Photon

• Electron

• Proton

• Neutrino