What i know (Pretest)

Directions: Choose the letter of the best answer, Write the letter in your Science Notebook.

1. Electricity Flows and the bulbs light up when the switch is __________.

a. off
b. on
c. broken
d. taken

2. When fewer light bulbs are used in a circuit, the brightness of each bulb __________.

a. increases
b. decreases
c. disappears
d. none of the above

3. If the other end of the wire is not properly connected to the negative end of the battery, the bulb __________.

a. will not light
b. glows dim
c. will light
d. glows bright

4. A simple circuit has a long wire, 1.5 volts and a bulb. Why does the bulb get dimmer?

a. because the power supply is not enough to light the bulb brightly
b. because the load is too many
c. because the wire is too long
d. because the wire is too short

5. Imagine a circuit with a 1.5-volt battery and a bulb and a similar circuit with a 3-volt battery and two bulbs, which has the brighter glow?

a. the circuit with 1.5-volt battery and a bulb
b. the circuit with 3-volt battery and two bulbs
c. the bulbs in both circuits are similar brightness levels.
d. the bulbs in both circuit will not lit

6. Why might a bulb have busted when 3 pieces with 3 volts each are all connected across a simple circuit?

a. there is insufficient amount of electricity flowing in a circuit
b. too much electricity flows through the bulb's filament and the bulb blows
c. the batteries are not connected properly
d. the batteries are used p or uncharged

7. What is the effect of changing wire in a circuit from a straight short wire to a longer coiled thick wire?

a. the bulbs become dimmer
b. the bulbs become brighter
c. the bulbs stay at the same level of brightness
d. nothing has changed

8. What needs to be done to this circuit so that the lamp lights up?

a. close the switch
b. add another bulb or lamp
c. add another wire
d. add a battery and close the switch

9. The switch is off. What happens to the bulb?

a. the bulb lights
b. the bulb is busted
c. the bulb doesn't light
d. the bulb breaks

10. More bulbs are added to a simple circuit. What happens?

a. the bulb glows dimmer
b. the bulbs will be busted
c. the bulbs will glow brighter
d. the bulbs will break

Please paki answer po ng tamang sagot, kailangan na po to bukas, thanks in advance po

at meron pala, kung sino ang maka sagot ng tama i brainliest ko po, please tamang answer lang po walang troll, kung troll po i report ko po yung answer.

Please lang po, thanks in advance po <3
​