True Power

True Power

Assessment

Passage

Science

12th Grade

Practice Problem

Hard

NGSS
HS-PS2-5

Standards-aligned

Created by

Wayground Content

FREE Resource

7 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the definition of True Power?

The rate of using energy in a certain amount of time.

The total energy consumed by a device.

The potential energy stored in a device.

The energy dissipated as sound.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is True Power calculated in a circuit?

By dividing energy by time.

By multiplying voltage and current.

By dividing voltage by current.

By multiplying resistance with the square of current.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does True Power reflect in a resistor?

The RMS values of voltage and current.

The peak values of voltage and current.

The kinetic energy of electrons.

The potential difference across the resistor.

Tags

NGSS.HS-PS2-5

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a purely resistive circuit, how are voltage and current related?

Current leads voltage by 90 degrees.

Voltage and current are 'in-phase' with each other.

Voltage leads current by 90 degrees.

Voltage and current are inversely proportional.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the significance of 'phase angle' in AC circuits?

It determines the efficiency of power transmission.

It represents the difference between voltage and current in a circuit.

It indicates the resistance of the circuit.

It measures the direct current component.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is NOT a characteristic of True Power?

Performs useful work, like producing heat or light.

Voltage and current pass through the same instances of time on a sine wave.

Depends on the 'power factor' in a purely resistive circuit.

Product of Voltage and Current (P=VxI).

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does a 'phasor' represent in AC circuits?

The maximum power transfer in a circuit.

The relationship between voltage and current.

The frequency of the alternating current.

The resistance of the circuit.

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