Renewable Sources of Energy

All of these examples are renewable sources of energy , except .................

• solar energy

• wind energy

• coal

• waterfalls

A modern windmill is .................... than an old windmill

• taller

• shorter

• heavier

The Sun consists of diferent gases , such as ....................

• Hydrogen & Nitrogen

• Hydrogen & Helium

• Oxygen & Helium

• Oxygen & Nitrogen

Tags

NGSS.MS-PS1-1

The surface of the sun is called ................

• Sun Sphere

• Gaseous Sphere

• Photosphere

• Ionosphere

.................. is the output energy in solar panels

• Solar energy

• Heat energy

• Electric energy

• Chemical energy

Water of rivers stores great .................... at the top of slopes ( قمة الشلال)

• Kinetic energy

• Potential energy

• Electric energy

• Light energy

Tags

NGSS.MS-PS3-2

When the dam stop the flow of water , So the potential energy of water ..........................

• Decreases

• Increases

• remains constant

  تبقى ثابتة

Tags

NGSS.MS-PS3-2

A dynamo changes Kinetic energy into Electric energy

• True

• False

Tags

NGSS.HS-PS3-3

Heavy blades are better than light blades in generating electricity

• True

• False

Tags

NGSS.MS-PS3-1

The wind rotates the blades of windmills

• True

• False

Tags

NGSS.MS-PS2-2