SEMESTER-1 GRADE 8 CLASSWORK 4
SUBJECT: Physics
TOPIC: Light
Student Name: _______________________
Where light comes from – Assessment for
learning
Part 1: Naming luminous and non-luminous objects
In Stage 7 Unit 11, The Earth and space, you learnt that some objects are described as
luminous and others as non-luminous.
Work with a partner. In the table below, list some examples of each type of object.
Make sure you agree with your partner.
Luminous objects
Non-luminous objects
Part 2: Explaining the difference
With your partner, decide what the difference is between luminous and nonluminous objects. Complete the sentences below to explain the difference.
Luminous objects …
Non-luminous objects …
Part 3: Comparing ideas
Share your answers to Parts 1 and 2 with another pair in
the class. Add any extra examples to the table in Part 1.
Revise your answers to Part 2 if you have thought of a better way to
express your ideas. Luminous objects …
Non-luminous objects …
In the diagrams below, measure the angle of incidence and the angle of reflection. You will
need a protractor. You will also need a pencil and a ruler to complete two of the diagrams.
A
mirror
normal
Angle of incidence =
B
Angle of reflection =
Angle of incidence =
Angle of reflection =
C
Angle of incidence =
Angle of reflection =
Cambridge Checkpoint Science 8
2