Electric Potential and Equipotentials Review

What is the relationship between electric field and electric potential?

• E = -dV/dr

• E = V/r

• E = V * r

• E = dV/dr

Which equation gives the electric field from the electric potential?

• E = -dV/dr

• E = V * r

• E = V/r²

• E = dV/dr

What is the electric potential at a point due to a collection of point charges?

• V = Σ (1/(4πε₀)) * (qᵢ/rᵢ)

• V = Σ (qᵢ * rᵢ)

• V = Σ (qᵢ/rᵢ²)

• V = Σ (qᵢ + rᵢ)

Tags

NGSS.HS-PS2-4

What is the speed of an electron released from rest in a uniform electric field after traveling one meter, given E = 500 N/C?

• 1.33 x 10⁷ m/s

• 2.00 x 10⁶ m/s

• 3.00 x 10⁸ m/s

• 9.11 x 10⁻³¹ m/s

Tags

NGSS.HS-PS2-1

NGSS.HS-PS3-5

What is the potential difference (ΔV) between two points in an electric field E over distance d?

• ΔV = -Ed

• ΔV = Ed

• ΔV = E/d

• ΔV = d/E

Tags

NGSS.HS-PS3-5

What is the value of the electric potential at a point 0.5 m from a 5 x 10⁻⁶ C charge?

• 90,000 V

• 45,000 V

• 10,000 V

• 1,000 V

Tags

NGSS.HS-PS2-4

Which of the following is a conservative force?

• Electric force

• Friction

• Air resistance

• Tension

Tags

NGSS.HS-PS2-4

What is the formula for the electric potential difference in terms of work and charge?

• ΔV = W/q

• ΔV = q/W

• ΔV = W * q

• ΔV = W + q

What is the electric potential at a distance r from a point charge q in terms of the permittivity of free space (ε₀)?

• V = (1/4πε₀) * q/r

• V = q * r

• V = 4πε₀ * q * r

• V = q/r²

Tags

NGSS.HS-PS2-4

Which mathematical operation is used to find the electric potential on the axis of a uniformly charged disk?

• Integration

• Differentiation

• Multiplication

• Subtraction

Tags

NGSS.HS-PS2-4