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Jouer Froggy Jumps
1. a tool to help you see above you
A
periscope
B
glass
C
microscope
2. mirror that reverse an image back to front
A
flat mirror
B
convex mirror
C
concave mirror
3. What do we call materials that allow light to pass through?
A
Translucent
B
Transparent
C
Opaque
4. natural light source
A
moon
B
fire
C
lamp
5. material that reflect light well
A
rock
B
metal
C
wood
6. a ray of light that strikes a surface
A
incident ray
B
reflected ray
C
angle of incidence
7. the phenomenon when you look a pencil bent inside water
A
reflection
B
refraction
C
travel in the straight line
8. examples of opaque object
A
water, glass, and lens
B
wood, book, table
C
paper, tissue, book
9. an object not allowing any light to pass through
A
transparent
B
translucent
C
opaque
10. an object allowing little light to pass through
A
opaque
B
translucent
C
opaque
11. example of artficial light source
A
fire
B
sun
C
flashlight
12. surface that reflect light in one direction
A
rough
B
smooth
C
rock
13. a form of energy that you can see
A
light
B
heat
C
light source
14. characteristic of light
A
can not be reflected
B
travel in the straight line
C
can not be refracted
15. example of translucent object
A
thin curtain
B
book
C
glass
16. light that travel to the opaque object
A
shadow
B
light source
C
mirror