G8 STEM Q2 Exam

Ohm’s law is expressed as_____________.

• V=IR

• V=CR

• V=AO

• None of above

Two resistors are in series when they________________.

• are connected one after another

• are connected to the same point (also called anode)

• both a and b

• none of the above

Which leg of the LED must be connected to the red wire of the battery?

• Anode

• Cathode

• Anyleg if ok

• None of the above

What type of circuit connection is in the picture?

• Series

• Parallel

• Series–Parallel

• None of the above

Using two resistors in series, you can increase the value of the resistance, hence decreasing the flow of current. Hence, the LED glows_______.

• Less

• Brighter

• LED will not light up

• None of the above

It is created by the movement of electrons or charge.

• voltage

• current/electric energy/electricity

• resistance

• none of the above

This is the force that a power source creates at its two ends. This force makes the charge flow around the circuit.

• voltage

• current

• resistance

• none of the above

It is always connected across the component whose voltage we are measuring.

• voltmeter or multimeter

• current

• resistance

• none of the above

It is the property of having two poles that have opposite physical properties. It decides the direction in which the charge in the circuit will flow.

• proton

• electron

• polarity

• none of the above

It is a substance or material that allows electricity to flow through it.

• load

• power source

• conductor

• none of the above