Gravity and Circular Motion

How does the force of gravity between two objects change when the distance between them is 5 times larger?

• 5 times more

• 5 times less

• 25 times more

• 25 times less

Tags

NGSS.HS-PS2-4

How does the gravitational force the Earth exerts on the sun compare to the gravitational force the sun exerts on the Earth?

• The gravitational force the sun exerts on the Earth is larger

• The gravitational force the Earth exerts on the sun is larger

• Their gravitational forces are equal

• There is not enough information

Tags

NGSS.HS-PS2-4

At what distance from the sun is the gravitational force due to the sun on an object zero?

• Once you get farther away than Pluto.

• It is not possible, the sun's gravity will always affect you

• 50 light-years

• We do not know, since no man-made object has traveled that far

Tags

NGSS.HS-PS2-4

As two objects get closer together, what happens to the force of gravity between them?

• The force of gravity increases

• The force of gravity decreases

• The force of gravity stays the same, since their masses are constant

• Not enough information

Tags

NGSS.HS-PS2-4

A 3 kg drone travels in a circle of radius 6 m and has a centripetal force of 50 N. What is the centripetal acceleration of the plane?

• 8.33 m/s²

• 150 m/s²

• 1.5 m/s²

• 16.67 m/s²

Tags

NGSS.HS-PS2-1

What is the gravitational force between a 500 kg mass and a 2000 kg mass that are separated by a distance of 5 m?

• 3.335 x 10^-8

• 2.668 x 10^-6

• 1.334 x 10^-5

• 6.67 x 10^-9

A ball on a string is spun around in a circle. Which of the following quantities is not constant?

• mass

• force

• velocity

• acceleration

A yo-yo is whirled on a string, then the string breaks. What causes the yo-yo to move off in a straight line?

• centrifugal force

• centripetal force

• inertia

• centripetal acceleration

As an astronaut travels far away from Earth, his weight

• increases because gravity increases.

• decreases because her mass decreases.

• remains the same because her mass remains the same.

• decreases because gravity decreases.

Tags

NGSS.HS-PS2-4

How does the force of gravity between two objects change when the mass of one of the objects increases?

• Fg increases

• Fg decreases

• It depends on the distance between the objects

• Fg stays the same