AS Associate Of Science In Physics 3

Question 1

Ohm's Law states that the voltage across a conductor equals:

Accepted Answer

Current times resistance

Answer

Ohm's Law is V = IR, where V is voltage (volts), I is current (amperes), and R is resistance (ohms).

Question 2

What is the electric charge of an electron?

Accepted Answer

-1.6 × 10⁻¹⁹ C

Answer

An electron carries a negative elementary charge of approximately -1.6 × 10⁻¹⁹ coulombs.

Question 3

By convention, magnetic field lines outside a bar magnet flow from:

Accepted Answer

North pole to south pole

Answer

By convention, external magnetic field lines flow from the north pole to the south pole of a magnet.

Question 4

Which phenomenon best demonstrates the wave nature of light?

Accepted Answer

Diffraction

Answer

Diffraction — the bending of light around obstacles and through small openings — is a characteristic wave behavior that demonstrates light's wave nature.

Question 5

In a series circuit containing two resistors R₁ and R₂, the total resistance is:

Accepted Answer

R₁ + R₂

Answer

In a series circuit, resistances add directly: R_total = R₁ + R₂, because the same current flows through each resistor.

AS - Associate In Science Degrees Practice Test

AS - Associate In Science Degrees Practice Test

AS Associate Of Science In Physics 3