Understanding Light and Its Properties

What is the only form of energy that can be seen with our eyes?

What is the biggest source of light in our solar system?

How long does it take for light to travel from the sun to the Earth?

• 8 minutes and 20 seconds

• 5 minutes

• 10 minutes

• 15 minutes

Light travels from the sun to the Earth through:

• conduction

• convection

• radiation

• reflection

What happens once light hits an object?

• The object absorbs all the light.

• The object reflects, absorbs, or transmits the light.

• The object becomes invisible.

• The object emits its own light.

What is the term used when an object allows light to pass through it?

• translucent

• opaque

• transparent

• reflective

When an object blocks light, not allowing it to pass through, what is it called?

• It is called an opaque object.

• It is called a transparent object.

• It is called a translucent object.

• It is called a reflective object.

What happens when light travels through matter with different densities?

• It bends or refracts

• It speeds up

• It disappears

• It changes color

Light is a form of energy. It travels as a ray in a straight line away from its source until it hits an object in its path. True or False?

• True

• False

Refraction helps people with a vision impairment to see clearly by:

• focusing light directly on the retina

• scattering light in all directions

• absorbing all light

• reflecting light away from the eyes