Intro to light

Light

• Is a form of energy

• Travels as a wave

• Travels much faster than sound (300,000km/s)

• All of the above

Light travels

• In curved lines

• From bright objects to dark objects

• From bight objects to dark objects

• In straight lines

This is an example of a ______________ object. Light travels in a straight line directly into our eyes.

• Luminous

• Non luminous

• Opaque

• Translucent

This is an example of a ________________ object. Light hits the book and some of the light is reflected into the eye.

• Luminous

• Non luminous

• Translucent

• Opaque

A transparent material

• Allows no light to pass through it

• Allows some light to pass through it

• Allows light to pass through it

• Allows light to pass through it, but depending on how bright it is

The light bulb on the left can be described as

• Transparent

• Translucent

• Opaque

• Non luminous

The milk bottle on the far right can be described as

• Luminous

• Opaque

• Translucent

• Transparent

These are light rays of an ____________ material

• Opaque

• Translucent

• Transparent

• Luminous

An opaque object produces a __________ which appears on the opposite side of the light source

• Cloud

• Reflection

• Shadow

• Optical illusion

An example of a translucent object is

• Sunglasses

• Pencil case

• Glass with nothing in it

• Dog