PRE TEST


Directions: Read the questions carefully. Write the letter of your correct answer on the blank provided before the number.

1. What subatomic particles have a positive charge?

A. electron

B. neutron

C. proton D. both a and b

2. A material can become negatively charged by

A. gaining electrons

B. gaining protons

C. losing electrons D. losing protons

3. Once you comb your hair and the comb becomes positively charged, then your

hair becomes

A. negatively charged

B. positively charged C. uncharged

D. either positive or negative charged

4. Electrical current can easily tra el through materials like metals. What are these types

of materials called?

A. batteries

B. conductors

C. insulators

D. resistors

5. Two like charges

A. attract each other

B. neutralize each other

C. repel each other

D. do not affect on each other​