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