Will Mark As Brainliest Plz Help Unit 1 Physics B Test
1. Two charges of magnitude +q are separated by a distance d. Assuming there are no changes to anything else, but the charges are separated by 3 times their current distance, what will happen to the Coloumb force between them?

The new Coloumb force will be 1/9th the original

The new Coloumb force will be 1/3rd of the original

The new Coloumb force will be 3 times the original

The new Coloumb force will be 9 times the original

2. In the nucleus of an atom, two protons are separated by a distance of 10^-13 m. What is the Coloumb force between them? The charge of a proton is + 1.602 x 10^-19 C.

0.023 N

0.078 N

0.004 N

0.051 N

3. How many electrons must be added to an object to give it an overall net charge of -3.0 x 10^-7 C? The charge of an electron is -1.602 x 10^-19 C. 1.9 x 10^12 electrons

3.1 x 10^13 electrons

2.0 x 10^10 electrons

1.4 x 10^14 electrons

4. What is the net Coloumb force on the +1e charge? A charge of e is 1.602 x 10^-19 C.

3.91 x 10^-11 C to the right

1.62 x 10^-10 C to the right

2.02 x 10^-9 C to the left

4.97 x 10^-10 C to the left

5. A point p is located 56 cm to the right away from a point charge of 6.7 x 10^-10 C. What is the direction and magnitude of the electric field at point p?

19.21 N/C

23.7 N/C

11.5 N/C

13.8 N/C

6. A point q is located 151 cm directly above a charge of -5.5 x 10^-12 C. What is the direction and magnitude of the electric field at point q?

1.35 N/C, pointing down

3.84 N/C, pointing up

2.99 N/C, pointing up

2.17 N/C, pointing down

7. What is the net electric force at point x in the picture below?

0.29 N/C to the left

0.09 N/C to the left

0.37 N/C to the right

0.14 N/C to the right

8. A point charge of charge Q is located some distance d away from a location p. If nothing changes, but p is moved twice as far away, what will happen to the electric field at point p?

The electric field will be 1/2 of what it was

The electric field will be 1/3 of what it was

The electric field will be 1/4 of what it was

The electric field will be 1/5 of what it was

9. If an atom has 13 protons and is currently electrically neutral, what must happen to give the same atom a positive charge of +2e?

2 electrons must be removed

3 electrons must be added

1 proton must be removed

2 protons must be removed

What is polarization?

10. When the positive and negative charges in an object are separated

The creation of magnetic poles

The charging of an object by placing a charged object against a neutral one

The creation of charge by removing charges through friction