Current and Circuits

What metal is the best conductor of electrical current?

• Copper

• Silver

• Steel

Tags

NGSS.MS-PS2-3

What type of metal are most wires made of?

• Silver

• Copper

• Steel

When a switch is _________, the electric current can flow through the circuit.

• open

• closed

A(n) ________ is formed when an electric current passes through an unbroken path of conductors.

• battery

• insulator

• surge protector

• circuit

What kind of circuit is this?

• series

• parallel

What kind of circuit is this?

• Series

• Consecutive

• Parallel

• Training

The picture shows an electrical circuit. This circuit is a series circuit because: 

• It has 3 light bulbs.

• The same current flows through all three light bulbs.

• It uses a single battery.

• The electrical current has more than one path to flow through

If lamp 2 is unscrewed from its holder, what will happen to lamp1?

• It will stay lit

• It will go out

• It will get dimmer

• It will dissapear

What is the unit of electric current?

• Ampere

• Volt

• Ohm

• Watt

Which of the following materials is an insulator?

• Copper

• Aluminum

• Rubber

• Gold

Tags

NGSS.MS-PS3-3