Universal Gravitation

Check all the true statements about the Law of Universal Gravitation.

• All objects in the universe attract all other objects in the universe.

• The force of attraction increases when mass(es) increase.

• The force of attraction decreases when the distance between the masses increases.

• Gravity can either attract or repel.

Tags

NGSS.HS-PS2-4

Check all that are true about the Earth and the moon.

• The Earth's pull on the moon is greater than the moon's pull on the Earth because the Earth is bigger.

• Mass on the moon is the same as mass on the Earth.

• Weight on the moon is the same as weight on the Earth.

• If gravity were to disappear, the moon would fly out into space.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

What is the value of the Universal Gravitation Constant (G)?

• 6.67 x 10^ -11 Nm²/kg²

• 9.81 m/sec²

• 3.5 x 10^22 N

• 10 m/s²

Tags

NGSS.HS-PS2-4

What does the gravitational force depend on?

• Mass and distance

• Velocity and time

• Acceleration and force

• Energy and power

Tags

NGSS.HS-PS2-4

What is the formula to calculate gravitational force between two objects?

• F = Gmm/d²

• F = mg

• F = ma

• F = E/t

Tags

NGSS.HS-PS2-4

Tags

NGSS.HS-PS2-4

Find the distance between two objects whose masses are m₁ = 4,500 kg, and m₂ = 8,700 kg; if the gravitational force between them is F = 2.0 x 10^-8 N.

• 130565.25 m

• 361.34 m

• 0.19575 m

• 0.783 m

Tags

NGSS.HS-PS2-4

Calculate the force of gravity (F) between two objects whose masses are m₁ = 100 kg and m₂ = 1000 kg if they are separared by a distance of d = 500 m.

• 2.67 * 10^-11 N

• 0.4 N

• 6.67 * 10^-11 N

• 1.3 * 10^-8 N

Tags

NGSS.HS-PS2-4

The reason why ocean tides happen is

• Electrical forces between the sun and the moon

• gravitational forces between the Earth and the moon.

• Magnetic forces between the Earth and the moon

• Motion of the moon around the earth

Tags

NGSS.MS-PS2-4

The sun is the anchor point of our solar system because of

• the gas Hydrogen

• its small density

• its huge mass

• its location

Tags

NGSS.MS-ESS1-1