soal-soal electrostatic

Comprehention Test 1

1. An atoms consits of….

a.       Atomic nucleus

b.      Proton and electron

c.       Proton and electron and neutron

d.      Atomic nucleus and neutron

2. An atom will have neutral property if….

a.       The number of proton more than electron

b.      The number of neutron equal to electron

c.       The number of proton equal to electron

d.      The number of proton less than electron

3. If a glass is rubbed with silk, then….

a.       The silk is positive charge

b.      The glass is negative charge

c.       Proton move from glass to silk

d.      Electron move from glass to silk

4. The electrically charges bodies below that repel each other are….

a.       Plastic with glass

b.      A comb with glass

c.       Plastic with a comb

d.      Ebonit with glass

5. Given body A is positive. If A attract body B. and B repel body C. and C Attract body D. Then D is…..

a.       Positive

b.      Negative

c.       Neutral

d.      Either positively ar negatively

6. If two similarly electric charge are brought close to each other at certain distance. They will produce repulsive force. If the distance of those two charges is changed two time larger, the repulsive force become.

a.       0.25 F

b.      0.5 F

c.       2 F

d.      4F

7. Two bodies have charge 6 x 10^-9 C and 8 x 10^-9 C. those two bodies are separated at distance of 4 m. the force between two bodies equal to….

a.       192 x 10^-5 N

b.      48 x 10^-5 N

c.       27 x 10^-5 N

d.      12 x 10^-5 N

8. Two bodies have charge 3 C and -5 C. those two bodies areseparated at distance of 5 m. the force between two bodies equal to….

a.       -5.4 x 10⁹ N

b.      -54 10⁹ N

c.       -2.7 x 10⁹ N

d.      -27 x 10⁹ N

9. A region that is influence by electric force is called….

a.       Electric power

b.      Electric potential

c.       Electromotive force

d.      Electric field

10. Electric field strength at a distance of 1 cm from a charge of 10^-6 C is…..

a.       9x10⁷ N/C

b.      9x10⁵ N/C

c.       10⁷ N/C

d.      10⁵ N/C

11. A charge is 3x10^-5 C. if the magnitude of force is 0.45 N. the magnitude of electric field strengt is…..

a.       1.5x10⁸ N/C

b.      1.15x10⁴ N/C

c.       13.5x10⁵ N/C

d.      13.5x10¹³ N/C

12. A body is positively charge by 3.6x10^-2 C.the electric field strength at a distance 20 cm is…

a.       5x10⁹ N/C

b.      50x10¹⁰ N/C

c.       4.5x10¹¹ N/C

d.      45x10¹¹ N/C

13. Electric charge that have the same mass are….

a.       Electron and proton

b.      Electron and neutron

c.       proton and neutron

d.      Electron and proton and neutron

14. Two bodies that are electrically charged by +2C and +3C each are separated 4 cm. the repulsive force of those two bodies is…..

a.       0.375 x 10^-4 N

b.      0.375 x 10⁵ N

c.       3.375 x 10⁵ N

d.      3.375 x 10⁹ N

15. The mass of neutron is….

a.       1.67 x 10^-27 Kg

b.      1.67 x 10^-24 Kg

c.       1.767 x 10^-27 Kg

d.      1.67 x 10^-37 Kg