Concept 4.1 - choose and ✓ or X lesson 5 5G

The force of............ keeps the planets in their paths around the Sun

فن العلوم عماد الششتاوي

• air resistance

• Friction

• gravity

• electricity

Gravity is ...........force that holds all objects in their places

فن العلوم عماد الششتاوي

• visible pulling

• Visible pushing

• invisible pulling

• invisible pushing

The planets revolve around the Sun in fixed......... orbits

فن العلوم عماد الششتاوي

• oval

• irregular

• rectangular

• triangular

the speed of Earth's revolution around the Sun is nearly.........Km per hour

فن العلوم عماد الششتاوي

• More than 100.000

• More than 200.000

• Less than 100.000

• Less than 50.000

.............is (are) the center of the solar system

• Earth

• The Sun

• Earth and the moon

• Earth and the Sun

The Sun revolves around Earth

فن العلوم عماد الششتاوي

• ✓

• X

The planets revolve around the Sun by the effect of gravitational pushing force

فن العلوم عماد الششتاوي

• ✓

• X

Gravity is an attraction force that can be seen easily

فن العلوم عماد الششتاوي

• ✓

• X

The orbit of each planet has an ellipse shape

فن العلوم عماد الششتاوي

• ✓

• X

The Earth's gravity keeps all planets in their orbits

فن العلوم عماد الششتاوي

• ✓

• X