USES AND SOURCES OF LIGHT, SOUND, HEAT AND ELECTRICITY

1. This is a kind of energy that can be observed by using our eyes.

• Sound

• Light

• Heat

• Electricity

1. Which among the following is not an example of Artificial Light?

• Flashlight

• Traffic Lights

• Fireworks

• Moon

Which of the following is an example of a natural source of light?

• Candle

• Flashlight

• Sun

• Lamp

1. Which type of energy is produced by rubbing your hands together?

• Sound

• Light

• Heat

• Electricity

Which of the following is an example of a source of sound?

• Radio

• Sun

• Refrigerator

• Fire

Which of these is a proper safety measure when using electricity?

• Leave appliances plugged in when not in use

• Touch wires with wet hands

• Unplug electrical devices after use

• Use electrical devices in the rain

1. What energy is produced when you speak?

• Light

• Electricity

• Heat

• Sound

1. What is the purpose of light in our daily lives?

• 1. To cook food

• 1. To help us see

• To produce heat

• To make noise

What is the energy we use to power appliances like refrigerators and air conditioners?

• Heat

• Sound

• Electricity

• Light

What energy does a light bulb produce?

• Sound

• Electricity

• Heat

• Light