Movement of the Solar System T2

What is the gravitational force of attraction between a planet and a 20-kilogram mass that is freely

falling toward the surface of the planet at 5 meters per second^2?

• 100 N

• 15 N

• 25 N

• 50 N

According to Newton's Law of Universal Gravitation, gravitational force increases with increased distance due to the inverse square relationship.

• True

• False

The acceleration due to gravity on the surface of planet X is 30 meters per second ². If the mass of an object on planet X is 10 kg, how much does it weigh? (Hint: w = mg)

• 40 N

• 20 N

• 300 N

• 3 N

Which graph shows positive acceleration?

• 1

• 2

• 3

• 4

Which graph shows 0 acceleration?

• 1 + 3

• 1 + 2

• 2 + 4

• 3 + 4

Which graph shows negative acceleration?

• 1

• 2

• 3

• 4

Which graph shows positive acceleration?

• 1

• 2

• 3 - 5

• no graphs

Which graph shows 0 acceleration?

• 1

• 2

• 3 - 5

• no graphs

Which graph shows negative acceleration?

• 1

• 2

• 3 - 5

• no graphs

Which graph shows 0 acceleration?

• 1

• 2

• 3 - 5

• no graphs