Gravitation Phet Check

Gravitational force is always

• Attractive
• Repulsive

Tags

NGSS.HS-PS2-4

Newton's 3rd Law tells us that if a gravitational force exists between two objects, one very massive and one less massive, then the force on the less massive object will be  ____________ _______ the force on the more massive object.

• Greater than
• Equal to
• Less than

The distances between masses is measured from ____________________________ 

• their edges between them
• from their centers
• from the edge of one to the center of the other

Tags

NGSS.HS-PS2-4

As the distance between masses decreases, force 

• increase
• decreases

Tags

NGSS.HS-PS2-4

Doubling both masses would result in a change of force between the masses of

• 8 times
• 6 times
• 4 times
• 2 times

Tags

NGSS.HS-PS2-1

Reducing the distance between two masses to half while doubling the mass of one of the masses would result in the change of force between masses of 

• 8 times
• 6 times
• 4 times
• no change

Tags

NGSS.HS-PS2-4

What is the gravitational force between Dylan and Sarah if Dylan has a mass of 75 kg, Sarah has a mass of 54 kg, and their centers are separated by a distance of 0.45m

• 13 N
• 1.3 N
• 1.3 x 10^-6 N
• 3.1 x 10^-5 N

Tags

NGSS.HS-PS2-4

What is the gravitational force between John and Mike, if John has a mass of 81 kg, and Mike has a mass of 93 kg, and their centers are separated by a distance of 0.62m

• 1.3 x 10^-6 N
• 1.4 x 10^-6 N
• 1.3 N
• 4.1 x 10^-5 N

Tags

NGSS.HS-PS2-4

Imagine a 4820 kg satellite in geosynchronous orbit.  If an 85 kg piece of space junk floats by at a distance of 3.5 m, whaqt will the space junk feel?

• 2.2 x 10^-6 N
• 2.6 x 10^-8 N
• No change
• Double the force

Tags

NGSS.HS-PS2-4

NGSS.HS-PS2-1

With what acceleration will the space junk move toward the satellite?

• 2.2 x 10^-6 m/s²
• 2.6 x 10^-8 N
• 2.6 x 10^-8 m/s²
• Double the acceleration

Tags

NGSS.HS-PS2-4

NGSS.HS-PS2-1