Electricity

Gap-fill exercise

  
Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
Movement of electrons in a material constitutes electric current and generates an energy called energy.

An atom consists of proton, electron and neutron which are called particles.

Electrons revolve around the nucleus in different paths called .

Electrons in the inner orbits are strongly attracted by the and they cannot be removed from the atom easily.

is the basic property of matter that causes objects to attract or repel each other.

Protons carry positive charge and the electrons carry negative charge.

Electric charge is measured in .

The substance which gains electrons become charged .

A neutral object can become charged when electrons get transferred to another object.

Opposite charges attract each other and like charges each other.