Chapter 10 Assessment

In the diagram below, P is a point near a negatively charged sphere. Which direction best represents the direction of the electric field at point P?

• Right
• Left
• Up 
• Down

Tags

NGSS.HS-PS2-4

A point charge Q is far from all other charges. At a distance of 2 m from Q, the electric field is 20 N/C. What is the force a charge of 5 Coulombs feels?

• 4 N
• 100 N
• 40 N
• 10 N

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

An electrostatic force of 2 X 10². newtons is exerted on a charge of 4 coulomb at point P in an electric field. The magnitude of the electric field intensity at P is

• 8 X 10² N/C
• 5 N/C
• 2 X 10^-2 N/C
• 50 N/C

Tags

NGSS.HS-PS2-4

An electrostatic force of 2 X 10². newtons is exerted on a charge of 4 coulomb at point P in an electric field. The magnitude of the electric field intensity at P is

• 8 X 10² N/C
• 5 N/C
• 2 X 10^-2 N/C
• 50 N/C

What is voltage?

• The amount of electric potential energy per one coulomb of charge
• The amount of 1 coulomb of charge per unit of potential energy
• The number of volts per coulomb
• The amount of electric potential energy per volt

The potential difference between the terminals of a connection wire is ……..

• Zero

• greater than zero

• Less than zero

• infinity

Electrostatic potential energy is recorded in units of electron-Volts (eV). What is equivalent to 1 eV?

• 1.602×10⁻¹⁹ 𝐽

• 100 𝐽

• 220 𝐽

• 0.003 𝐽

What is the voltage across   the plates of the capacitor if  the capacitance is 10 uF and the Charge stored is  30 uC?

• 0.333 V
• 3 V
• 300 V

How is the capacitance of a parallel-plate capacitor affected by the potential difference across the capacitor ?

• C depend on the potential difference across the capacitor

• C does not depend on the potential difference across the capacitor

• C partially depend on the potential difference across the capacitor

• C sometime depend on the potential difference across the capacitor

If the capacitance is 47μF, and the voltage difference across the capacitor terminals is 6V, then the energy stored in that capacitor is:

• 846×10^-6Joule
• 7.23×10^-3 Joule
• 6.76×10^-5Joule
• 5.94×10^-2Joule

Tags

NGSS.HS-PS3-1