Simple Electrical Circuits

Lesson 2-The Basics Recap

Draw the circuit symbol for a bulb

Draw the circuit symbol for an ammeter

What component is used to measure electrical current?

A. Switch

B. Resistor

C. Ammeter

D. Voltmeter

Which component changes electrical energy into light energy?

A. Bulb

B. Switch

C. Cell

D. Battery

Which component is a store of chemical energy?

A. Bulb

B. Battery

C. Switch

D. Resistor

Which of these materials is not a conductor of electricity?

A. Water

B. Graphite

C. Lead

D. Wood

Name this circuit symbol.

A. Ammeter

B. Switch

C. Bulb

D. Voltmeter

V

Q1. Is the circuit below a series or parallel

A2

AA3

Q2. If the reading on Ammeter A is 2A-What will the reading on A2 and A3 be?

Q1. Is the circuit below a series or parallel

A1

A2

A3

A4

Q2. If the reading on Ammeter 4 is 2A what will the reading on:A2, A3 and A1 be?

V2 V3

V1

NB Voltmeters are connected in parallel

Q1. Is the circuit below a series or parallel

Q2. If the reading on Voltmeter 1 is 8V what will the readings onV2 and V3 be?

• For a series circuit, the sum of the voltages for each component is equal to the voltage across the cell or battery.

• V1 = V2 + V3

V1

V2

V3

Q1. Is the circuit below a series or parallel

Q2. If the reading on Voltmeter 1 is 8V what will the readings on V2 and V3 be?

• For a parallel circuit, the voltage across the cell/battery is the same as the voltage across each branch.

• V1 = V2 = V3