Electric Power

Electric Power

9th Grade

15 Qs

quiz-placeholder

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Electric Power

Electric Power

Assessment

Quiz

Science

9th Grade

Medium

NGSS
HS-PS2-5, HS-PS3-1

Standards-aligned

Created by

Lisa Thompson

Used 1+ times

FREE Resource

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Why are the wires of a toaster coated in plastic?

Plastic is stronger than other materials

Plastic is a good electrical conductor

Plastic protects people from electricity because it is an insulator

Only plastic can be made into the right shape of a wire

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

To prevent overload and overheating of wires

fuses are used

circuit breakers are used

fuses and circuit breakers are used

fuses and resistor are used

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Identify the symbol-

Electric Bulb

Electric Cell

Battery

Switch in ON position

Switch in OFF position

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

At home, you noticed that a portion of an electrical wire is worn out, exposing its metallic part. What do you think might happen if you will just ignore this problem?

short circuit may happen

circuit is of better condition

overloading may not happen

nothing happens when someone touches the wire

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

If you replace the paper clip with a plastic spoon, what happens?

The bulb doesn't light

The bulb is dimmer

The wires get hot

There is no change

Tags

NGSS.HS-PS2-5

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

An electrical ground provides a alternative path for current if something goes wrong in a circuit or device.

true

false

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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

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