Оптикаға арналған материалдар.

Puzzle

Fill in the boxes correctly. Then using the letters in the grid fill in the corresponding coloured boxes below the puzzle. You will find the name of an animal which uses Earth’s magnetism to navigate.

• The region of a magnet where the force of attraction is greatest.
• The attraction property of magnets.
• A method of suspending objects in air.
• A region of the Earth’s magnetic field.
• An instrument indicating direction.
• Unlike poles …….. each other.

Puzzle

Fill in the boxes correctly. The coloured column will give you the name of a device which is used to change the value of voltages.

• A type of magnet obtained by winding a wire around a soft-iron core.
• Moving part of a motor.
• A train which uses electromagnets to move.
• A machine producing electricity from motion.
• A device that changes electrical energy into sound.
• The name of a material used in the core of electromagnets
• A machine which produces motion from electricity.
• A device that uses electricity to produce a ringing sound.
• A machine that uses wind to produce electricity.
• An appliance that uses electricity to transfer sound to someone far away.
• A device which stores sounds as magnetic codes.

Luminous object

1

Nonluminous

Transparent, Translucent and Opaque objects

светящийся

2

Umbra and Penumbra

3

Прозрачный, полупрозрачный и непрозрачный

4

Solar and Lunar eclipse

  Тень и полутень

несветящийся

5

Солнечное и Лунное затмение

Reflection of light

Angle of incidence

6

7

Plane mirror

Concave mirror

Angle of reflection

9

Convex mirror

8

10

Угол падения

Отражение света

Угол отражения

Плоское зеркало

Вогнутое зеркало

11

Refraction of light

Выпуклое зеркало

Преломление света

Broken phone

Cut these words

Transparent – мөлдір/прозрачный

Refraction – сыну/преломление

Reflection – шағылыс/отражение

Opaque – мөлдір емес/непрозрачный

Umbra – көлеңке/тень

Concave – ойыс/вогнутый

Convex – дөңес/выпуклый

Converging – жинатқыш/собирающая

Diverging – шашыратқыш/рассеивающая

Translucent – жартылай мөлдір/полупрозрачный