Physics and Chemistry Quiz: Circuits, Atomic Structure, and Radioactivity

In a circuit with two 6Ω resistors in series connected to a 12V battery, what is the total resistance?

• 6Ω
• 12Ω
• 18Ω
• 24Ω

How much current flows through a 60W light bulb connected to a 120V source?

• 0.25A
• 0.5A
• 1A
• 2A

Which equation represents Ohm's Law?

• V = IR
• P = IV
• E = Pt
• F = ma

What is the formula for calculating power in an electrical circuit?

• P = IR
• P = IV
• P = V²/R
• All of the above

How do you calculate the total resistance for resistors in series?

• R(total) = R1 × R2
• R(total) = R1 + R2
• 1/R(total) = 1/R1 + 1/R2
• R(total) = √(R1² + R2²)

What is the basic structure of an atom?

• Nucleus and protons
• Electrons and neutrons
• Positively charged nucleus with orbiting electrons
• Negatively charged nucleus with orbiting protons

Which particle in an atom has a neutral charge?

• Proton
• Electron
• Neutron
• Positron

What is the charge of an electron?

• +1
• -1
• 0
• +2

Which particle has the smallest mass?

• Proton
• Neutron
• Electron
• They all have the same mass

What are isotopes?

• Atoms with different numbers of protons
• Atoms with different numbers of electrons
• Atoms with different numbers of neutrons but the same number of protons
• Atoms with different numbers of protons and neutrons