Conductors and Insulators.EMF and Resistance

Do all substances conduct the electric current easily?

How is a substance called if it strongly resists the electric current flow?

What does a conductance depend on?

What materials are the best conductors of electricity?

What substances are insulators?

What force moves the electrons from one point to another?

What unit is used for measuring an e.m.f.?

What devices may be used as a source of an e.m.f.?

Is it true or false?

The thinner or longer the wire, the greater is the resistance offered.

Translate the following word combination into English:

"надлишок електронів"

Translate the following word combination into English:

"електроустановка"

Translate the following word combination into English:

"чинити опір"

Translate the following word combination into English:

"витікати"

Translate the following sentence into English:

Матеріал, з якого виготовлені провідники, повинен витримувати високі температури.

Translate the following sentence into English:

Саме термометр виміряє температуру речовини.

Choose the right variant.

If we change the e.m.f., the electric current _______ as well.

Choose the right variant.

If coal were not used as fuel, we _______ more valuable products.

Choose the right variant.

_______ the e.m.f. alternating, the current would be alternating as well.

Choose the right variant.

Had they used a larger water pipe for their last experiment, more water _____ through that pipe.