(R) 5.6B Science STAAR (Circuits & Electricity)

Front

The picture shows a series circuit with three lit bulbs. How many of the bulbs will remain lit if the wire is cut at the point shown by the arrow?

Back

0

Front

Which of these changes to the electric circuit shown will cause the lightbulb to light up?
Options:
Straightening the wire so that the current can flow more easily,
Adding a switch and more wire so that the current can flow more easily,
Turning one battery so that its positive end connects to the other battery's negative end,
Making the length of wire the same on both sides of the lightbulb

Back

Turning one battery so that its positive end connects to the other battery's negative end

Front

When the lights are on, electricity travels in ----(5.6B)

Back

a complete circuit

Front

Why are there two metal posts on a battery?

Back

The battery needs to form a complete circuit that starts with one metal post and ends with the other metal post.

Front

What happens if the wire in a car fuse burns out? Options: The car's lights will burn brighter. The car's radio will not work. The car's turn signal will blink too slowly. The car's power windows will open faster.

Back

The car's radio will not work.

Front

A group of students built the circuit shown here. The lightbulb does not glow. Which statement explains this observation?

Back

The lightbulb is not part of a complete circuit.

Front

A simplified diagram of a system using solar energy is shown. To recharge the battery for later use without lighting the bulb, which switches should be closed? (5.6B) Options: Switch S only, Switches R and S only, Switches R and T only, Switches R, S, and T

Back

Switches R and T only

Front

All the lightbulbs in this circuit are lit. Which change would cause all the bulbs to go out?

Back

Removing Wire 1

Front

Students constructed a circuit using different-colored lightbulbs. What will happen if Switch 3 is closed and the other switches are left open?

Back

Only the white and yellow bulbs will operate.

Front

This circuit has three lightbulbs and a bell. Which procedure will result in only the blue lightbulbs operating? Options: Close Switches 1 and 2 and leave Switch 3 open, Close Switch 3 and leave Switches 1 and 2 open, Close Switches 2 and 3 and leave Switch 1 open, Close Switch 2 and leave Switches 1 and 3 open

Back

Close Switches 2 and 3 and leave Switch 1 open