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WorksheetsHomework 4: Light
Total questions: 18
Worksheet time: 2hrs 30mins
What is light?
A form of energy that allows us to see
A form of sound that allows us to hear
bright stuff that allows us to see
A form of excitement that allows us to see
Which of the following is not a source of light?
The Sun
The Moon
Torch
What is light intensity?
a ray
heat
the amount of light from a light source
how smart you are
The intensity of the light can be measured using a _______________.
intensity
volt meter
stop watch
light meter
The unit of light intensity.
Meter
lamp
lux
volt
If the angle of incidence is 45 degree, what is the angle of reflection?
45
90
180
none of the above
In the diagram, which letter represents the angle of incidence?
A
B
C
D
If Θ2 is 40 degrees what is Θ3?
40
50
80
90
The word below is a mirror image. You have to write it again correctly.
Я Ǝ ᖷ ⅃ Ǝ Ɔ T I O И
(a)
