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Electricity Basics Introduction

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Electricity Basics Introduction

A storm has left a small research hut without working lights. Use what you know about charge, circuits and materials to investigate the problem. Answer every question; for multiple-choice questions, select one answer unless told otherwise.

Charge and static electricity

Objects are made of atoms. Protons have positive charge, electrons have negative charge, and neutrons have no charge. In ordinary electrical events, electrons can move between objects.

1.Which particle in an atom has a negative electric charge?

Proton
Neutron
Electron
Nucleus

2.After a balloon is rubbed on wool, it can cling to a wall. Explain how this is an example of static electricity, using the word electrons.

3.A fleece jumper crackles as it is taken off, and a torch lights when its switch is turned on. Name which event is mainly static electricity and which is current electricity.

Making a circuit work

Electric current is the rate of flow of electric charge. In metal wires, electrons move through the conductor. A complete, closed conducting path is needed for current to keep flowing.

4.A battery is connected to a bulb by one continuous, closed external wire, making a complete circuit. Describe the direction electrons move through the wire and bulb. Name the battery terminal they leave and the terminal they return to.

5.The hut's bulb does not light. The battery works, the bulb works, and the wires are metal, but one wire is not touching the bulb holder. What is the most likely reason the bulb stays off?

The circuit is open, so there is no complete path for current.
The battery has too many electrons.
The bulb has become a magnet.
Current can only flow through plastic.

6.Select all the materials that are usually good electrical conductors.

Copper wire
Plastic ruler
Metal spoon
Rubber band
Aluminium foil

7.Fill the blank using these words: current, electrons, static. In a metal wire, electricity is a flow of charge.

8.Fill the blank using these words: current, electrons, static. In a metal wire, charge is carried by moving .

9.Fill the blank using these words: current, electrons, static. A build-up of charge on an object is called electricity.

10.Power lines use metal to carry current, while their outer covering and supports may use insulating materials. Explain why both a conductor and an insulator are useful.

11.Mere says, “Static and current electricity are completely unrelated.” Give one similarity and one difference between them.

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Electricity Basics Introduction

Electricity Basics Introduction

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2 printable pages

About This Worksheet

Free in Kuraplan

Print-Ready

AI-Generated

For Teachers & Parents

Need a custom version of this worksheet?

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