Universal Gravitation

Two masses 8000 kg and 1500 kg are 1.5 m apart. Find their gravitational pull.

• 3 N

• 0.0003 N

• 3000 N

• 30 N

Tags

NGSS.HS-PS2-4

Two masses, 7.5X10^5 kg and 9.2 X 10^7 kg are 2.5 X 10^3 m apart. Find their gravitational pull.

• 7000 N

• 7 N

• 0.07 N

• 0.0007 N

1 kg and 2.0X10^30 kg objects are 7.0X10^8 m apart. Find the gravitational pull.

• 0.272 N

• 2.72 N

• 272 N

• 272,000 N

What happens to Universal Gravitational Force when masses are increased?

• Force increases

• Force decreases

• Force stays the same

• There is not enough information

What happens to Universal Gravitational Froce when distance increases to 2X between masses?

• Increases by 2

• Increases by 4

• Decreases by 2

• Decreases by 4

True or False: All masses have a gravitational attraction to each other.

• True

• False

• None of the above

• There is not enough information

True or False: Your pencil will move towards you because both masses attract each other.

• True - it's mass and there's gravitational force

• False - there is not enough acceleration and more force towards the Earth

• None of the above

• There is not enough information.

True or False: Two objects with different masses, the object with the larger mass will have the strong gravitational pull.

• True - according to Newton's 2nd law, more mass is more force.

• False - Newton's third law says equal and opposite - they are the same.

• None of the above

• There is not enough information.

Two objects of mass 1 kg and 100 kg are 8 m apart. Calculate their Universal Gravitational Force.

• 1.0 X 10^-10 N

• 1.9 X 10^10 N

• 1.0 X 10^-5 N

• 1.9 X 10^5N

Two objects of mass 25 kg and 25 kg are 25 m apart. What is their Universal Gravitational Force to each other?

• 6.99 X10^11 N

• 6.99X10^11 N

• 6.67X10^-11 N

• 6.80X10^-21 N