Science Flashcards
(34 cards)
light travels in a ______ line.
straight
What is a type of material that you could see through?
Transparent
What is a type of material that you could sort of see-through?
Translucent
What is a type of material that you can’t see through?
Opaque
Name the primary source of light on Earth.
Sun
A shadow is formed when a _____ object is blocked.
Opaque
The size of a shadow is affected by the ______ of the object.
position
Light intensity can be measured by using ________.
light meter
What is a revolution of earth?
365 days
The time for one rotation is?
24 hours/1 day
the Earth makes one complete rotation on its ______.
Axis
The earth is tilted on its __________________.
Axis
When sunlight passes through a raindrop, it bends. That is called _________________.
Refraction
Newton used a ______________ to show that white light is made up of seven colors.
Prism
What does a prism do to a white light?
It breaks it into seven colors.
How many colors are in the white color ?
7
The raindrops act as small …………. in the rain.
prisms
The shadow becomes ________ if the light source moved closer to the object.
bigger
When the screen moves from the object.
What happens to the size of the shadow on the screen?
it becomes bigger
The factors that affect the size of the shadows are?
the size of the object and light source.
Mirrors in the periscope are parallel set to each other at a ___________ degree angle,
45
The periscope was used for observation purposes in the trenches during ____________.
World war 1
What particles make up light?
photons
A band of light is called a ______________ of light.
beam/ray
