Light

Light is a form of energy?

• True

• False

The point where light rays converge when relfected from a concave mirror is called the?

• principal focus

• focal length

• focal point

When a light ray cannot pass through a substance and instead it is absorbed we say the substance is?

• transparent

• translucent

• opaque

When a light ray is bent passing through a substance we say it has been?

• reflected

• refracted

• absorbed

• internally reflected

Tags

NGSS.MS-PS4-2

The three primary light colours are?

• Red, White and Blue

• Red, Blue and Yellow

• Red, Green and Yellow

• Red, Blue and Green

Light energy bouncing off the surface of an object

• Reflection

• Refraction

• Magnify

• Convert

Light energy that bends (changes direction or size) as they pass from one type of object to another

• Reflection

• Refraction

• Magnify

• Convert

Opaque means...

• No light passes through it
• All light passes through it
• Some light passes through it

Which explains why the fork looks different under water?

• light can't pass through the glass
• the wavelength of light lengthens
• the amount of light increases when going through water
• light is refracted at an angle

Smooth surfaces _______ a lot of light.

• reflect
• bend
• absorb
• twist