"Where Does Electricity Come From" Energy PPT Courseware 3

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"Where Does Electricity Come From" Energy PPT Courseware 3

What energy is electrical energy converted into?

electric light mechanical energy

washing machine thermal energy

Rice cooker light energy and sound energy

television light energy

More than 2,500 years ago, the ancient Greeks discovered that rubbed amber could absorb objects and called this phenomenon "electricity."

In 1600, the British doctor Gilbert conducted many years of experiments and discovered many phenomena such as "electricity" and "electric attraction"

In 1745, Kleist, an archdeacon of Prussia (the predecessor of Germany), discovered the phenomenon of electric discharge in experiments.

In 1752, Franklin of the United States conducted the famous kite experiment to "capture lightning from the sky", proving that lightning in the sky and electricity on the ground are one and the same.

The first person to start researching electric current was Italian anatomy professor Galvani. He spent 12 years studying the electrical effects of muscle movements such as frog legs.

In the spring of 1800, there was a further breakthrough in the debate about the cause of the electric current. Volta invented the famous "Voltaic battery"

judge

1. Electrical energy can only be converted from light energy. ( )

2. If the small bulb cannot be lit by turning the small motor, it means that it does not emit electricity. ( )

3. A current detector composed of a small magnetic needle and a coil can detect whether the small motor is emitting electricity. ( )

4. When testing, the magnetic needle should be kept away from the small motor because there are magnets in the small motor ( )

5. A power supply is a device that converts other forms of energy into electrical energy. ( )

1. A small generator can convert other forms of energy into ( ).

A. Mechanical energy B. Thermal energy C. Electrical energy

2. Turn ( ) when the battery is discharging.

A. Convert chemical energy into electrical energy

B. Chemical energy is converted into thermal energy. C. Electrical energy is converted into chemical energy.

3. The electric energy produced by nuclear power plants is converted from ( ).

A. Mechanical energy B. Thermal energy C. Atomic energy

4. The amount of power generated by the generator has nothing to do with ( ).

A. Rotation speed B. Motor size C. Rotation direction

5. The electric energy generated by hydropower stations is converted from ( ).

A. Wind energy B. Thermal energy C. Water energy

6. The electric energy generated by wind power stations is converted from ( ).

A. Chemical energy B. Wind energy C. Water energy

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For more information about the PPT courseware "Energy Where Electricity Comes From", please click the Energy ppt Where Electricity Comes ppt tag.

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Update Time: 2024-10-21

This template belongs to science courseware Science Edition for Sixth Grade Science Volume 1 industry PPT template

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