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

Current divided by resistance

Answer

Resistance divided by current

Answer

Current plus resistance

Question 2

What is the electric charge of an electron?

Accepted Answer

-1.6 × 10⁻¹⁹ C

Answer

+1.6 × 10⁻¹⁹ C

Answer

0 C

Answer

-3.2 × 10⁻¹⁹ C

Question 3

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

Accepted Answer

North pole to south pole

Answer

South pole to north pole

Answer

The center outward in all directions

Answer

Only inside the magnet

Question 4

Which phenomenon best demonstrates the wave nature of light?

Accepted Answer

Diffraction

Answer

Photoelectric effect

Answer

Compton scattering

Answer

Pair production

Question 5

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

Accepted Answer

R₁ + R₂

Answer

R₁ × R₂

Answer

R₁/(R₁ + R₂)

Answer

(R₁ × R₂)/(R₁ + R₂)

Question 6

The photoelectric effect demonstrates that light behaves as:

Accepted Answer

A particle (photon)

Answer

A transverse wave

Answer

A longitudinal wave

Answer

A standing wave

Question 7

What is the speed of light in a vacuum?

Accepted Answer

3 × 10⁸ m/s

Answer

3 × 10⁶ m/s

Answer

3 × 10¹⁰ m/s

Answer

3 × 10⁴ m/s