Fields (Gravitational, Electric, Magnetic)

Which of the following does not create a force field?

• gravitational force

• centrifugal force

• electric force

• magnetic force

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-4

NGSS.MS-PS2-5

The definition of gravitational field strength is:

• The region of space surrounding a body where other bodies will feel an attractive force due to it.
• The region of space surrounding a body where other bodies will feel an repulsive force due to it.
• The region of space surrounding a charge where other charges will feel an attractive force due to it.
• The region of space surrounding a charge where other charges will feel an repulsive force due to it.

Tags

NGSS.HS-PS2-4

Which statement about a uniform gravitational field is true?

• Its magnitude is the same in all directions.

• The gravitational potential has the same value at all points within it.

• Its direction is opposite to the direction of motion of a test mass released in it.

• Its field strength is the same at all points within it.

Tags

NGSS.HS-PS2-4

The closer together the gravitational field lines.....

• the weaker the gravitational field strength
• the stronger the gravitational field strength
• the more repulsive the gravitational field strength

Tags

NGSS.HS-PS2-4

How far out from a mass should the gravitational field lines go....

• to where the gravitational field becomes negligable
• to twice the diameter of the mass
• infinitely far
• to four times the diameter of the mass

Tags

NGSS.HS-PS2-4

If you double the mass of both m1 and m2, by what factor will the gravitational force change?

• F/4
• 4F
• 16F
• F/16

Tags

NGSS.HS-PS2-4

Saturn has a surface field strength of 10.4 N kg⁻¹ and a radius of 6.03 × 10⁴ km. What is the mass of Saturn?

• 4.7 × 10¹⁸ kg

• 5.7 × 10²⁰ kg

• 4.7 × 10²⁴ kg

• 5.7 × 10²⁶ kg

Tags

NGSS.HS-PS2-4

If the radius of an orbit were doubled, what effect would it have on its period of orbit?

• no effect

• would increase

• would decrease

• need more information

Tags

NGSS.HS-ESS1-4

What happens to the gravitational and electric force if you triple the distance of separation?

• 1/9

• 9

• 3

• 1/3

Tags

NGSS.HS-PS2-4

What is an electric field?

• A region in space in which a mass experiences a force due to the earth's mass

• A region in space through which electromagnetic radiation is passing

• a region in space in which a compass needle experiences a force

• A region in space in which an electric charge experiences a force

Tags

NGSS.HS-PS3-5