Transformer Basics

Transformer Basics

Assessment

Interactive Video

Physics

8th Grade

Practice Problem

Easy

Created by

Carol Gomez

Used 10+ times

FREE Resource

9 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Transformers can only work using

AC current

DC current

Iron

wood

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The direction of the current will alternate backwards and forwards

to amp up and get more power

for a little while

with the rotation of the generator

until something gets electrocuted

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

DC current behaves different than AC current because the magnetic field

is bigger

remains constant

fluctuates

is smaller

4.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Two ways to increase the strength of the magnetic field is to (choose 2)

place multiple cables together and add a current

hold it up really high in the air

add water

add coils to the cable

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Constantly changing the intensity and polarity of the magnetic field keeps the electrons to moving,

known as

Electromagnetic pulse (EMP)

Electric voltage field (EVF)

electromotive force (EMF)

Electrophoto field (EPF)

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The purpose of the ferromagnetic (iron) core is to

prevent electrocution

make it easier to work on

make it look nicer

prevent waste

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Step up and step down transformers are used to increase or decrease the voltage simply by

increasing or decreasing the number of turns on the secondary side

going up and down a flight of stairs

adding a lithium battery

increasing or decreasing the number of turns on the primary side

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