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S1 Light
Test Description: Introduction to light
Instructions: Answer all questions to get your test result.
1) A substance that allows light to pass through it easily is described as
A
opaque
B
shiny
C
translucent
D
transparent
2) The Law of Reflection states that
A
the angle of reflection is called the normal
B
the angle of incidence equals the angle of reflection
C
the angle of reflection is always the same
D
light reflects off a plane mirror
3) When beams of parallel light pass through a convex lens
A
move apart (diverge)
B
remain parallel
C
stop
D
the beams come together (converge)
4) The point where light beams meet is known as the _________ point?
A
divergence
B
incidence
C
focal
D
reflection
5) A solar furnace uses this type of mirror to focus the sunlight on to a point
A
plane
B
black
C
concave
D
convex
6) Light waves travel ___________ ___________ sound waves
A
faster than
B
at the same speed as
C
slower than
D
between smaller
7) The amount of light that enters your eye is controlled by
A
the optic nerve
B
the pupil
C
the lens
D
the retina
8) A red object looks red...
A
because it is really black
B
because it supports AFC
C
because it absorbs all the other colours in white light apart from red
D
because it absorbs red light
9) The colours of the rainbow include
A
Red, Pink and Green
B
Red, Blue and Purple
C
Red, Brown and Yellow
D
Red, Yellow and Violet
10) The focal point of a lens can be brought closer by using
A
a thinner convex lens
B
a thinner concave lens
C
a thicker concave lens
D
a thicker convex lens
*select an answer for all questions
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