Science Test: Electricity

In a circuit, what does this symbol represent?

• A lamp

• A cell

• A buzzer

• A motor

If there are two cells and one bulb in a circuit, how bright will the bulb be?

• Off

• Bright

• Dim

• N

The buzzer converts kinetic energy into

The bulb converts electrical energy into

The motor converts electrical energy into

The cell converts chemical energy into

Draw two cells and a switch (in the main circuit), with two lamps in parallel.

Draw a circuit with two cells, one bulb one buzzer, and a push-button switch.

Electricity

Why is copper a good material for wires in circuits?

• Copper is a lightweight material
• Copper is resistant to corrosion
• Copper has a high melting point
• Copper is a conductor.