WorksheetsHomework 2: Light
Total questions: 15
Worksheet time: 8mins
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
Which of the following statements is correct?
All light is reflected
Moon is a light source
Light travels in straight lines
How do we see objects which does not emit light?
Light from the light source enters our eyes
Light from light source reflects off the object then enters our eyes
Our eyes can see the object because there is light
What is light intensity?
a ray
heat
the amount of light from a light source
how smart you are
Different light sources give different light intensities. True or False
True
False
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
________________ often use light meter.
doctors
office workers
photographers
layers
100 000 lux
This light intensity can usually be found in ______________.
shady place
starlight
direct sunlight
overcast day
The best intensity of light for learning is in between 300 lux and 700 lux.
Your classroom usually has how much light intensity?
400 lux
400 meter
4000 lux
4000 meter
The time now is 7.00 am.
What is the possible lux measurement?
10000
800
60
4
Light Intensity: As one gets further from a light source, the intensity of light....
Increases
Decreases
Gets brighter
Gets more luminous
As one approaches (gets closer) to a light bulb, the brightness of the bulb....
Increases (brighter)
Decreases (dimmest)
Stays the same
Changes in some unknown way
