امتحان

The inert gas in fluo r escent lamp is

1

mercury vapo r

2

both

3

Argon

تصحيح

The inner surface of glass rube is covered with-----------

1

Opaque material

2

Phospho r ic material

3

Dark material

تصحيح

---------connect the fluo r escent lamp to the electricity

1

Glass tube

2

Two point of connection

3

Two filament of the tungsten

تصحيح

? In parallel connection increasing the number of connecting light the light interest ------------

1

Increased

2

Remain as it is

3

Decreased

تصحيح

type of the bulb in light bulb---------------

1

metal

2

glass

3

plastic

تصحيح

By increase the number of the connected bulbs in series connection the light intensity is------------

1

Decrease

2

Remain as it is

3

Increase

تصحيح

In the annular solar eclipse, the Moon size appears…………………. the size of sun.

1

larger than

2

equal to

3

smaller than

تصحيح

The o r bit of the Moon around the Earth is ……………

1

Circular

2

Rectangular

3

Oval

4

Spherica

تصحيح

…………… is the phenomenon of blocking the sunlight by the Moon fr om reaching the Earth's surface

1

Cloudy weather

2

Solar eclipse

3

Lunar eclipse

تصحيح

When the Moon lies in a higher o r bit than the Earth in front of the Sun, ………. happens

1

annular solar eclipse SISSE

2

partial solar eclipse

3

total solar eclipse

تصحيح

العلوم الصف السادس الابتدائى الترم الثانى