The Earth-Sun System

Which of the following causes day and night?

• Earth spinning around its axis.

• Moon moving around the Earth.

• Earth moving around the Sun.

• Moon spinning around its axis.

The Earth takes ــــــــــ hours to complete one rotation.

• 24

• 48

• 12

• 7

a transformation that turns a figure around a central point means ?

• orbit

• revolution

• rotation

Which of the following statements is TRUE about the pull of gravity between objects?

• The greater the mass and the shorter the distance, the smaller the pull of gravity.

• The greater the mass and the greater the distance, the greater the pull of gravity.

• The less the mass and the shorter the distance, the greater the pull of gravity.

• The greater the mass and the shorter the distance, the greater the pull of gravity.

What is the source of heat and light in our Solar System?

• the North star

• the sun

• the moon

• Earth

A line, real or imaginary, around which something spins is called:

• rotation

• axis

• Atmosphere

The path one object takes as it revolves around another object in space is called:

• orbit

• rotation

Does the Earth revolve or rotate around the Sun?

• revolve

• rotate

The gravity that pulls us to the ground comes from the sun.

• True

• False

The gravity that pulls us to the ground comes from:

• Earth

• orbit

• the North star

• an axis