Physics: Electrical Energy Quiz Lesson 1

Why can the energy stored in a battery be considered electrical energy?

• The energy is stored in chemical bonds.

• The energy gives rise to a potential difference.

• The energy increases the resistance of the battery.

• The energy can be stored in the battery indefinitely.

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

What happens to a current when the electric field in the wire increases?

• The drift velocity increases, and the number of electrons passing through a cross-section of wire decreases.

• The drift velocity decreases, and the number of electrons passing through a cross-section of wire decreases.

• The drift velocity increases, and the number of electrons passing through a cross-section of wire increases.

• The drift velocity decreases, and the number of electrons passing through a cross-section of wire increases.

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Which of these is the speed of an electron moving in an electric field in a conductor?

• drift velocity

• speed of light

• average electron speed

• average collision speed

One ampere of current is defined by the movement of which of these through a given area in one second?

• one electron

• one joule of energy

• one coulomb of charge

• one volt of potential difference

Which statement describes the movement of current and electrons in a wire?

• Electric current runs from the positive to the negative terminal, and electrons move in the same direction.

• Electric current runs from the negative to the negative terminal, and electrons move in the same direction.

• Electric current runs from the positive to the negative terminal, and electrons move in the opposite direction.

• Electric current runs from the negative to the negative terminal, and electrons move in the opposite direction.

Tags

NGSS.HS-PS3-5

Which of these can result from a current moving through a copper conductor?

• a decrease in voltage

• an increase in voltage

• a decrease in resistance

• an increase in temperature

How would the current running through a resistor of 6.2 Ω change if the voltage increased by a factor of 3?

• The current would decrease by a factor of 3.

• The current would increase by a factor of 3.

• The current would decrease by a factor of 9.

• The current would increase by a factor of 9.

What are two ways that resistance can be increased by changing a wire?

• by increasing the wire’s length and increasing the wire’s width

• by increasing the wire’s length and decreasing the wire’s width

• by decreasing the wire’s length and increasing the wire’s width

• by decreasing the wire’s length and decreasing the wire’s width

Three resistors with values of 4.0 Ω, 6.0 Ω, and 8.0 Ω, respectively, are connected in series. What is their equivalent resistance?

• 1.8 Ω

• 6.0 Ω

• 8.0 Ω

• 18.0 Ω

If the potential difference across the bulb in a camping lantern is 9.0 V, what is the potential difference across the battery used to power it?

• 1.0 V

• 3.0 V

• 9.0 V

• 18 V