Refraction and Lenses

The thicker the convex lens, the ___________________ its focal length.

• Shorter

• Longer

• Thicker

• Thinner

Most eyeglasses use which type of lens?

• Concave

• Prismatic

• Objective

• Convex

Light bending as it passes from one medium (object) to another is...

Tags

NGSS.MS-PS4-2

The type of image formed by a lens is determined by

• the index of refraction of the object

• the brightness of the light passing through it

• the shape of the lens and the position of the object

If the lenses in the microscopes help you focus light. What type of lenses are found in microscopes? (a)  

• Convex lenses

• No lenses

• Concave lenses

What happens to light waves when they interact with a transparent material? (a)  

• Transmitted and absorbed

• Reflected and transmitted

• Reflected and absorbed

Tags

NGSS.MS-PS4-2

What happens to light waves when they interact with a translucent material? (a)  

• Transmitted and absorbed

• Reflected and absorbed

• Reflected and transmitted

Tags

NGSS.MS-PS4-2

The reason the pencil looks broken is because of refraction.

• True

• False

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

When light moves from one medium to another, its speed changes.

• True

• False

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

The refraction of light causes us to see the straw differently above the water than below it, and it appears broken.

• True

• False

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2