Planetary Motion & Gravitational Attraction

The true shapes of planetary orbits are known as ________

• ellipses

• circles

• hyperbolas

• parabolas

Tags

NGSS.HS-ESS1-4

When Earth is the farthest from the Sun, it is said to be in the perihelion position.

• False

• True

When Earth is the nearest from the Sun, it is said to be in the aphelion position.

• False

• True

At which position might the moon block part of the Sun, making a solar eclipse visible from Earth?

• 7

• 2

• 9

• 3

The planets stay in orbit around the Sun because of a balance between ________ and ________.

• force

• speed

• energy

• gravity

The diagram below illustrates the relationship of the Moon and the Earth during a __________ eclipse.

• solar

• lunar

The animation below illustrates Kepler's __________ law.

• first

• second

• third

The animation below illustrates Kepler's __________ law.

• first

• second

• third

What revolves around the Earth?

• The moon

• The Sun

• Mars

• Venus

Calculate the eccentricity of this planet.

• 5.4

• 0.67

• 0.25

• 0.19