I. Read each item carefully. Choose the letter of your answer.

1. Mary Ann noticed that a set of ten bulbs in her Christmas tree lights did not light up when it was turned on. What could be a probable

cause of this?

A. Small wires are used. C. Small bulbs are used.

B. There are bulbs in the strand of. D. There is one defective bulb in the set

2. What will happen to the other bulbs in a series connection when one bulb is removed?

A. The other bulbs will light up C. The other bulbs will have dim light

B. The other bulbs will not light up D. The other bulbs will have bright light

3. What will happen to the other bulbs in a parallel connection when one bulb is removed?

A. few bulbs will light up. C. A few bulbs will no longer light up.

B. The other bulbs will still light up. D. The other bulbs will no longer light up.

4. Which of the following measures can prevent fire caused by electricity?

A. Have a regular inspection of electrical cords

B. Avoid walking under low dangling wires.

C. Touch a switch with dry hands.

D. Do not leave sockets empty.

5. In a series connection, why do remaining bulbs not light up when one bulb is taken out of its holder?

A. The other bulbs will not light up.

B. The other bulbs were burnt out.

C. The path of electric current was renewed.

D. The path of electric current became incomplete.

6. As the resistance of a circuit increases, what will happen to the current?

A. increase B. decrease C. stay the same D. all of the above

7. In a parallel circuit if one of the light bulbs burns out, what will happen to the other bulbs?

A. stop the flow of electricity C. Can still light up

B. will go out D. The light bulbs will burn out also

8. Which is needed in a circuit to start the electrons moved?

A. Battery B. Switch C. power source D. Wire

9. How many path(s) of a series circuit has that the electric current can take?

A. one B. Two C. Three D. Four

10. Which statement describes parallel circuits?

A. a circuit that has only one path for current to travel

B. A circuit that does not allow electricity to travel through it

C. Has more than one path for current to travel

D. Magnets that cause electric current​

Pasagot po ng maayos

I need it now