Quarter 2 Science Reviewer 5

When a 4-cm tall light bulb is placed from a diverging lens with a focal length of -12.0 cm, it formed an image at a distance equal to -5.00 cm. How will you describe the image formed?

• The image is enlarged.

• The image is virtual.

• The image is real.

• The image is inverted.

When a 4-cm tall light bulb is placed from a diverging lens with a focal length of -12.0 cm, it formed an image at a distance equal to -5.00 cm. Where is the object placed in front of the diverging lens?

• 2.40 cm

• 3.00

• 8.57 cm

• 9.60 cm

What optical device uses two converging lens with different focal lengths to

magnify very small objects?

• camera

• microscope

• projector

• telescope

What optical device uses two converging lens with different focal lengths to

view distant objects?

• camera

• microscope

• projector

• telescope

What is the function of the iris of the eye and iris diaphragm of the camera?

• regulates the amount of light that enters the opening

• refracts light as it strikes the material

• forms the image of the object

• closes and opens to protect the lens

What is the function of the pupil of the eye and aperture of the camera?

• regulates the amount of light that enters the opening

• light enters the eyes through this opening

• forms the image of the object

• closes and opens to protect the lens

Which of the following lenses are used in a simple telescope?

• two concave lens

• two convex lens

• one concave and one convex

• concave lens and mirror

What materials are used in binoculars?

• convex lens and prism

• concave lens and prism

• convex lens and mirror

• concave lens and mirror

What is the energy transformation in electric motors?

• mechanical to other forms of energy

• electrical to other forms of energy

• electrical to mechanical energy

• mechanical to electrical energy

What is the energy transformation in generators?

• mechanical to other forms of energy

• electrical to other forms of energy

• electrical to mechanical energy

• mechanical to electrical energy