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14.3 Electrical Power

Authored by Joseph Ochoa

Physics

8th Grade

NGSS covered

14.3 Electrical Power
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10 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The power of an appliance is...

the amount of voltage going through it 
the amount of energy transferred per second
the amount of charge that passes through per second

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Electrical power can be calculated using

Resistance x Voltage
Voltage x Current 
Voltage ÷ Current

Tags

NGSS.HS-PS3-5

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Watts is the same as...

Joules per second
Voltage per second
Current per second

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

The voltage supplied to a circuit is 17 V and the current running through is 10 A. What is the power generated?

170 W
170 A
1.7 V
1.7 W

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Calculate the electric power of an electrical appliance in which 10 A of current is flowing through a resistor of 2 ohms.
 
Remember: V=IR and P=VI

80 W
200 W
2.5 A
22.5 KJ

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

What will be the current drawn by an electric bulb of 1000 W when it is connected to a source of 220 V?
Remember: I = P/V

4.55 A
28800 J or 28.8 KJ
80 W
200 W

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is the unit of Electrical Power?

Joule

Watt

Where

Amp

Tags

NGSS.HS-PS2-5

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