Kepler's Laws, Gravitational and Satellite Motion

Two satellites orbit the Earth at the same speed in identical orbits. Satellite A is twice the mass of Satellite B. How does the centripetal ACCELERATION of Satellite A compare with that of Satellite B?

• Four times as much

• Twice as much

• The same

• One-half as much

Tags

NGSS.HS-PS2-1

Two satellites orbit the Earth at the same speed in identical orbits. Satellite A is twice the mass of Satellite B. How does the centripetal FORCE of Satellite A compare with that of Satellite B?

• Four times as much

• Twice as much

• The same

• One-half as much

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

A 70-kg astronaut floats at a distance of 10 m from a 50,000-kg spacecraft. What is the force of attraction between the astronaut and spacecraft?

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

A car moves around a curve in a horizontal circle with a radius of 100 m. The tangential speed of the car is constant at a value of 30 m/s. What is the car's acceleration.

• 9 m/s/s toward the center of the circle

• 9 m/s/s away from the center of the circle

• 9 m/s/s tangent to its circular path

• 0 m/s/s

Tags

NGSS.HS-PS2-1

A 1000-kg car moves around a curve in a horizontal circle with a radius of 100 m. The tangential speed of the car is constant at a value of 30 m/s. What is the force of friction acting on the car?

• 3000 N toward the center

• 3000 N away from the center

• 9000 N away from the center

• 9000 N toward the center

Tags

NGSS.HS-PS2-1

Tags

NGSS.HS-PS2-4

Tags

NGSS.HS-ESS1-4

NGSS.HS-PS2-4

If the Earth were a gaseous planet with twice the radius and double the mass determine gravitational field strength at the surface of the gaseous planet.

• 2 m/s/s

• 5 m/s/s

• 10 m/s/s

• 20 m/s/s

Tags

NGSS.HS-PS2-4

Tags

NGSS.HS-PS2-4