Exam 1

Chooce :

In the solar heaters, the solar energy is directly transforms into ------------- energy.

• Kinetic

• Sound

• Electric

• Heat

Multiple Choice :

The ant is considered as .................. and ..................

• Arachinds

• Insects

• Myriapods

• Arthropods

Complete :

From examples of a soft bodies ..................

Choose :

The law of electrons that saturates until the fourth energy levels is ..................

• n²

• 2n

• 2n²

• 2n⁴

Complete :

Predatory such as .........

choose :

Density of water is ..................

• 2.5 gm/cm³

• 0.5 gm/cm³

• 1.5 gm/cm³

• 1 gm/cm³

Choose the suitable picture that expressed the Camouflage

• 
• 
• 
• 

Choose :

Energy stored in the dry cell is ..............

• chemical energy

• mechanical energy

• kinetic energy

• nuclear energy

Choose :

From Technology has negative effects is .........

• Making battery

• Making electric lamp

• Making dynamo

• Massive destruction

Choose :

Energy stored in a flexed or compressed object ..................

• gravitational potential energy

• mechanical energy

• kinetic energy

• Potential energy