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Worksheets7th_light_quizziz
Total questions: 34
Worksheet time: 1hrs 16mins
Light is a form of energy.
True
False
Light travels
around corners
in a straight line (transverse waves)
in loops, like a slinky (longitudinal waves)
Light bounces when it strikes a smooth and/or lustrous surface
reflected
absorbed
refracted
Light bends when it is
reflected
absorbed
refracted
Can be used to identify heat signatures of people lost in the wilderness
Infrared
Radio
Microwaves
Ultraviolet (UV)
X-Rays
Can be used to send communications, videos, and music short range (local areas) or long range (to space)
Infrared
Radio
Microwaves
Ultraviolet (UV)
X-Rays
Used to cook with
Infrared
Radio
Microwaves
Ultraviolet (UV)
X-Rays
Sunlight, tanning beds, plant lights
Infrared
Radio
Microwaves
Ultraviolet (UV)
X-Rays
Used to "see" inside the body, for instance to tell if a bone is broken
Infrared
Radio
Microwaves
Ultraviolet (UV)
X-Rays
Which of these types of light have the highest energy?
Red
Yellow
Blue
Violet
Which of these types of light have the lowest energy?
Red
Yellow
Blue
Violet
Which waves have the highest energy?
Gamma Ray
Infrared
Visible Light
Radio
Light travels in straight lines until reflected by another object. Which illustration best shows the light being reflected?
Which illustration best shows light being refracted?
Which object refracted the laser beam?
Silver locket
Picture frame
Glass marble
Notebook
Which of the following is demonstrated when light bounces off mirrors or shiny surfaces?
Scattering
Refraction
Absorption
Reflection
Which of these provides the best explanation for why the pencil appears broken?
The pencil absorbs the light rays that hit it.
Water reflects light rays away from the pencil.
Light rays are bent by the water in the glass.
The surface of the water reflects the light rays.
The two kinds of reflection are:
transparent and translucent.
opaque and translucent.
regular and diffuse.
What type of surface best reflects light?
Dull
Shiny
Clear
Black
Why is the spectrum of light seperated into its components of colour when white light is directed to a prism?
The different colours in the white light bend away from the normal line at different angles when entering prism
The different colours in the white light bend towards the normal line at different angles when entering prism
The different colours in the white light bend away from the normal at same speed to each other when entering prism
The different colours in the white light bend towards the normal at same speed to each other when entering prism
This is the example of dispersion of light
sky looks bright orange in the evening
shadow
Pool seems shallower
rainbow
These are all colours of spectrum except
indigo
blue
purple
green
Why is red light is at the top whileviolet at the bottom of the spectrum?
Violet light has the medium speed so it is refracted the least.
Violet light has the highest speed so it is refracted the least
Red light has the slowest speed so it is refracted the least
Red light has the highest speed so it is refracted the least.
As you look at a rainbow, the colors go from top to bottom in what order?
ROYGBIV
VIBGYOR
GYORVIB
pretty to beautiful
Light travels in straight lines until it is bent by changing mediums. Which illustration best shows the light being refracted?
When a light ray strikes a smooth, flat surface, what is the relationship between the angle of incidence and the angle of reflection?
They are equal.
The angle of incidence is twice that of the angle of reflection.
The angle of reflection is twice that of the angle of incidence.
They combine to add up to 180o.
In this diagram, which is the angle of incidence?
Angle A
Angle B
Angle C
Angle D
What makes it possible to see an object when looking through a periscope?
It contains mirrors that reflect the object.
It magnifies small objects so they can be seen.
It bends the light rays passing through it.
It separates the light into different colors.
