S2 Review 1 - charge, force, energy, potential

A positively charged particle exerts a force on another positively charged particle. The force is 36 N. If the distance between the two particles is tripled, and the charge of both particles is doubled, what would be the new value of the force exerted?

• 24 N

• 16 N

• 432 N

• 12 N

• 8 N

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

One electron (charge - 1.6 x 10^-19 C) is accelerated from rest through a potential difference of 2000 V. The mass of the electron is 9.11 x 10^-31 kg. The kinetic energy of the electron is:

• 2.25 x 10²² J

• 3.2 x 10^-16 J

• 3.2 x 10^-19 J

• 3.2 x 10^-22 J

• none of the above

Tags

NGSS.HS-PS3-1

Electric potential, measured in volts, is the ratio of energy to amount of electric....

• current

• charge

• resistance

• voltage

• none of the above

3 identical metal spheres are mounted on insulating stands. Initially, sphere A has a net charge of q and spheres B and C are uncharged. Sphere A is touched to sphere B and removed. Then sphere A is touched to sphere C and removed. What is the final charge on sphere A?

• q

• q/2

• q/3

• q/4