Science : Light Energy

Front

What is light energy?

Back

Light energy is a type of energy that is visible to the human eye and is responsible for the sense of sight.

Front

What is a luminous object?

Back

A luminous object is something that gives off its own light, like the sun or a light bulb.

Front

What is a non-luminous object?

Back

A non-luminous object does not produce its own light; it can only reflect light from luminous objects.

Front

How does light travel?

Back

Light travels in straight lines.

Front

What is a shadow?

Back

A shadow is a dark area created when an object blocks light.

Front

What is the source of light energy?

Back

The source of light energy can be natural (like the sun) or artificial (like light bulbs).

Front

What happens when light hits a mirror?

Back

When light hits a mirror, it reflects off the surface.

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another, like from air to water.

Front

What is the role of light in photosynthesis?

Back

Light energy is used by plants to convert carbon dioxide and water into glucose and oxygen.

Front

What is the difference between heat energy and light energy?

Back

Heat energy is the energy of moving particles, while light energy is the energy that travels in waves and can be seen.