WorksheetsMind Mapping
Total questions: 12
Worksheet time: 9mins
It is a way of linking key concepts using images, lines, and links.
(a)
It presents a special quality of memory that can impart a dreamlike indistinctive quality to events from one's memory.
(a)
Mind mapping improves both..
memory and creative thinking.
memory and senses
senses and thoughts
Sources of light give off light by themselves.
(a)
Objects are those that are only visible when they reflect light from a light source.
(a)
Thomas Alva Edison, an American inventor, invented this bulb.
A tungsten-halogen bulb
incandescent buld
fluorescent light bulb
Has tungsten as filament but contains a halogen gas like bromine or iodine.
A tungsten-halogen bulb
incandescent buld
fluorescent light bulb
it does not get hot the way an ordinary light bulb does. It lasts longer and uses less electrical energy for the same brightness. Thus, it is considered as an efficient light source.
A tungsten-halogen bulb
incandescent buld
fluorescent light bulb
Is a sealed glass tube that contains neon gas.
Neon light tube
Vapor light bulb
Fluorescent light bulb
Used for street lightings and parking lots. They require very little electrical energy so they are quite efficient.
A tungsten-halogen bulb
Vapor light bulb
Fluorescent light bulb
Give example of Luminous objects.
(a)
Give example of nonluminous objects.
(a)
