Optical Illusion Metric Worksheet

READY FOR SCHOOL
Opt ical Illusion Met
r ic Wo rksheet
SUPERHEROES:
1
Which vertical line looks longer?
A. line A
2
B. line B
Measure both lines in millimeters.
line A = _____ mm
line B = _____ mm
A
B. Wider
Height of hat = __________ cm
Width of hat’s brim = _____ cm
Is the hat actually taller or wider?
A. taller
B. wider
C. same
Which blue circle seems bigger?
A. left
A. Taller
Measure both height and width in centimeters.
B
Which line is actually longer?
A. line A
B. line B
C. same
3
Does the hat seem taller or wider?
4
B. right
Which side appears to be longer?
A. side A
Measure side A and side B
in millimeters.
Diameter of left circle = ______ cm
Diameter of right circle = _____ cm
Side A = _____ mm
Side B = _____ mm
Which blue circle is actually bigger?
A. left
B. right
C. same
Which side is actually longer?
A. side A
B. side B
C. same
Which superhero appears to be the tallest?
A. left
B. middle
C. right
6
Measure their height in millimeters.
Height of left superhero = _______ mm
Height of middle superhero = ____ mm
Height of right superhero = ______ mm
Who is actually tallest?
A. left
B. middle
7
C. right
C
8
B. no
Which x-ray vision line
makes a straight line
to point C?
A. x-ray vision
line A
Define these words:
optic 10
B. x-ray vision
line B
B
A
Why are the pictures on this worksheet
considered optical illusions?
illusion
vertical
horizontal
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B. goblet
D. all the same
Hint: Hold the straight edge of your ruler against the lines.
9
B
Which do you see first:
profile of two superheroes or the goblet?
A. profiles
Are the laser beams curved?
A. yes
A
B. side B
Measure the diameter of each circle
in centimeters.
5
This is the brim.
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