Gravity, Mass and Distance

What two things does gravity depend on?

• distance and speed

• distance and space

• mass and distance

• mass and speed

What does the force of gravity do to objects?

• It makes them float.

• It makes them jump.

• It pulls them together.

• It pushes them apart.

Objects that have more mass also have more gravity.

• True

• False

Imagine you throw a baseball on Earth. Then, you travel to a planet with less gravity than Earth and throw the same baseball there. Which of the following would be true?

• The baseball would go farther on Earth.

• The baseball would go farther on the other planet.

• The baseball would go the same distance on Earth and the other planet.

Which list goes from smallest to largest?

• galaxy, universe, solar system

• solar system, galaxy, universe

• solar sytem, universe, galaxy

• universe, galaxy, solar system

Neptune has a slightly smaller radius and a slightly greater mass than Uranus. If you threw a ball with the same velocity on both planets, what would be true? (Assume both balls land back on the planet.)

• The ball would travel farther on Neptune.

• The ball would travel farther on Uranus.

• The ball would travel the same distance on each planet.

• Not enough information.

As mass increases, the stength of a planet's gravity_____________and as radius increases the strength of a planet's gravity ______________________.

• decreases, increases

• increases, decreases

• stays the same, decreases

• stays the same, inceases

If Earth's mass was cut in half, what would happen to your mass?

• increase because gravitational force increases
• decrease because gravitational force decreases
• decrease because gravitational force increases
• nothing, mass is not affected by gravitational force

Which model has greater gravitational attraction (if any)

• Model A
• Model B
• Both Model A and Model B (same gravity)

Which system has the greater gravitational attraction between the two objects (if any)?

• System A
• System B
• Same gravitational attraction fro System A and System B