Comparing Grav And Electrical

Question 1

Gravitational forces affect all particles with mass

Answer 1

Electrostatic forces affect only particles that carry charge

Question 2

Electrostatic forces can be repulsive or attractive

Answer 2

Gravitational forces are only attractive

Question 3

You can shield a charge from an electrostatic force

Answer 3

It isn’t possible to shield a mass from a gravitational force

Question 4

Electrostatic forces affect only particles that carry charge

Answer 4

Gravitational forces affect all particles with mass

Question 5

Gravitational forces are only attractive

Answer 5

Electrostatic forces are both repulsive and attractive

Question 6

It isn’t possible to shield a mass from a gravitational force

Answer 6

It is possible to shield a charge from an electrostatic force

Question 7

g= Fg/m

Answer 7

Field strength

E= Fe/Q

Question 8

g🔺h= GPE/m

Answer 8

Potential difference in uniform fields

E🔺x= EPE/Q

Question 9

1/2 mv^2 = mgh

Answer 9

Energy conservation in a uniform field

1/2 mv^2 = Q🔺V

Question 10

F= Gm1m2/r^2

Answer 10

Force laws

F= kQ1Q2/r^2

Question 11

g= Gm/r^2

Answer 11

Radial fields

E= kQ/r^2

Question 12

V= -GM(1/r1 - 1/r2 )

Answer 12

Potential difference in a radial field

V= -kQ(1/r1 - 1/r2 )

Question 13

Vg= -GMearth/r

Answer 13

Potential in the earths grav field/ point of electric charge

V= kQ/r

Question 14

g ➡️ r^2

Answer 14

Inverse square on graph

Directly proportional to 1/r^2

E➡️r^2