Science C.A.T. 2

Lights produced without human involvement are called ----------- lights.

• artificial

• spectrum

• natural

• reflective

Which one of the following can lead to stress, anxiety, health related problems and blindness?

• Transparency

• Reflection

• The Sun

• Shadow

Images appear bigger so that we can see them more widely with -------- mirrors.

• plane

• concave

• convex

• tinted

A shadow is made when an object is ------------ of light.

• behind

• at the back

• beside

• in front of

Oil, tissue paper, coloured plastics and tracing paper are examples of ------------- objects.

• partially see-through

• see-through

• opaque

• non-luminous

Which one of these vitamins do we get from the sun?

• Vitamin A

• Vitamin B

• Vitamin C

• Vitamin D

Light which we cannot see but can see and feel the effects is known as -------------------.

• The visible spectrum

• man-made light

• natural light

• The ultra-violet light

Which way can we protect ourselves from the sun?

• Going out between 11:00 a.m. and 3:00 p.m.

• Exposing the skin to the sun.

• Not wearing the correct outfit

• Seeking shade under umbrellas, trees or other shelters in when appropriate.

Which one of these is not a source of light?

• Fire

• Torch

• Light bulb

• Lenses

What does the picture show as regards light?

• Opaque objects

• Reflection

• Shadow

• Translucent objects