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WorksheetsLIGHT
Total questions: 20
Worksheet time: 40mins
What is the ligth?
Power derived from the utilization of physical or chemical resources.
Is a vibration that propagates as an acoustic wave, through a transmission medium such as a gas, liquid or solid.
It is produced, controlled, and detected in so many ways around you
It's a kind of energy called "electromagnetic radiation (EM)"
Does this object give off its own light?
yes
no
which is a transparent object
glass
copper
iron
steel
Which travels faster?
sound
light
water
Which is natural source of light?
Torch
Tubelight
Which of the following is the best example of an object absorbing light?
A black sweater in the sun.
A clean window in the sun.
A curved mirror in the sun.
A long shadow in the sun.
Energy waves bouncing off the surface of an object and returns energy back to the source.
Reflection
Refraction
Lens
Figure 1 demonstrates light travels in
zig zags
circles
a straight line
random bursts
What is the earth's primary source of light energy?
moon
sun
waves
fire
