Force fields review

A large planet is alone in deep space. Does it feel any gravitational force?

• No! Gravity is a force between two objects

• Yes! it feels its own gravity

Because of gravity all objects with mass __________ one another

• attract

• repel

• push

Tags

NGSS.MS-PS2-4

tripling the mass of an object _______ the force of gravity it feels by a factor of _______

• increase, 3

• decrease, 3

• decrease, 1/9

• increase, 1/9

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Increasing the distance between two objects by a factor of 9 will _______ the force of gravity between each object by a factor of _____

• increase, 9

• decrease, 9

• increase, 1/9

• decrease, 1/81

Tags

NGSS.HS-PS2-4

Compare the force of gravity on the moon by the earth and the force of gravity on the earth by the moon.

• They are the same, newtons 3rd law

• the force of gravity on the moon by the earth is stronger

• the force of gravity on the earth by the moon is stronger

• we do not have enough information

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Your car has a mass of 1200kg and another car in the parking lot has a mass of 1700 kg. if the force of gravity between the 2 cars is 1.51x10^-5 N how far apart are the two cars?

• 3m

• 9m

• 0.012m

Tags

NGSS.MS-PS2-4

If you climb to the top of the highest mountain on earth does the force of gravity between you and earth increase, decrease, or stay the same?

• increase, bc the distance between centers increase

• decrease, bc the distance between centers increase

• stay the same, distance between the centers has no effect on force of gravity

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

You are able to count he electrons and protons in an object. You count them and find more electrons than protons. Is the object's charge, positive, negative, or neutral?

• positive

• negative

• neutral

You pull your favorite sweater out of the dryer and it has a sock stuck to it. Why does this happen?

• the sock and sweater have different charges

• the sock and sweater have the same charges

• their gravity is causing them to be attracted to each other

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

An attractive force of 4x10^18 N is between two charged particles. The first particle has a charge of 6x10^-6 C. They particles are 2x10^-10 m apart. What is the charge of the second particle?

• 3x10^-6 C

• -3x10^-6 C

• 15000 C

• -15000 C

Tags

NGSS.HS-PS2-4