General Science 11

Electrical Hazards and Safety Practices

What is an electrical hazard?

Why is it dangerous to touch electrical appliances with wet hands?

What should you do before repairing an electrical appliance?

Why should damaged electrical cords be replaced immediately?

How can overloading an outlet be prevented?

Why is it important to unplug appliances when not in use?

What protective equipment should be worn when working with electricity?

Why should electrical devices be kept away from water?

Common Electrical Hazards

What is an electric shock?

What causes an electrical fire?

What is a short circuit?

Why are exposed wires dangerous?

How does water increase the risk of electrocution?

What can happen if an outlet is overloaded?

Electricity Consumption

What is electricity consumption?

What unit is used to measure electricity consumption?

What is the formula for calculating electrical energy?

What factors affect electricity consumption?

How can you reduce your electricity bill?

Why are LED light bulbs more energy-efficient?

Nature and Properties of Light and Sound

What is light?

What is sound?

Does light need a medium to travel? Explain.

Why can't sound travel in a vacuum?

Which travels faster, light or sound?

Name three properties of light.

Important Properties of Sound

What is pitch?

What is loudness?

What is frequency?

What is amplitude?

What is an echo?

In which medium does sound travel the fastest?

Importance of Light and Sound

Why is light important in our daily lives?

Why is sound important in communication?

Give three real-life uses of light.

Give three real-life uses of sound

Light Communication Technology, Safety, and Ethics

What is fiber optic communication?

What are the advantages of using fiber optics?

What safety precautions should you follow when using light and sound technologies?

Why is it important to use light and sound technologies ethically?