Generating Electricity and Transformers

Generating Electricity and Transformers

9th - 10th Grade

13 Qs

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Generating Electricity and Transformers

Generating Electricity and Transformers

Assessment

Quiz

Science, Physics

9th - 10th Grade

Practice Problem

Medium

Created by

Nurul Rahim

Used 15+ times

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13 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

A transformer changes

energy

frequency

power

voltage

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

The core of the transformer is made of

copper

gold

iron

silver

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

In a fossil-fuel power station, the overall energy conversion is

chemical to heat

chemical to electrical

heat to kinetic

heat to electrical

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which of the following does a transformer work with?

Alternating current only

Direct current only

Both alternating current and direct current

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is electricity transmitted at high voltages?

to reduce energy loss

to power more appliances

to be less dangerous to humans

to be less prone to fires

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

The input voltage in a transformer is 240,000V while the output voltage is 240V. What type of transformer is this?

Step Up Transformer

Step Down Transformer

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What is the main source of electricity in Singapore?

coal

natural gas

solar

oil

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