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Total questions: 12
Worksheet time: 6mins
What is the law of reflection?
The angle of incidence is equal to the angle of refraction.
The angle of incidence equals the angle of reflection.
The angle of incidence is always greater than the angle of reflection.
The angle of reflection is twice the angle of incidence.
How does light behave when it hits a mirror?
Light bends and refracts when hitting a mirror.
Light passes through a mirror without any change.
Light reflects off a mirror according to the law of reflection.
Light is absorbed completely by the mirror.
Define refraction of light.
Refraction of light is the scattering of light in all directions.
Refraction of light is the bending of light as it passes from one medium to another.
Refraction of light is the absorption of light by a medium.
Refraction of light is the reflection of light off a surface.
What happens to light when it passes from air into water?
Light passes straight through without any change.
Light bends and slows down when it passes from air into water.
Light speeds up and changes color when it enters water.
Light disappears completely when it hits the water surface.
List three properties of light.
Emission
Reflection, refraction, diffraction
Absorption
Polarization
What are the primary sources of natural light?
The sun, moon, stars, and auroras.
Reflected light from buildings
Artificial lights from lamps and bulbs
Light produced by fire and combustion
Name two artificial sources of light.
Sunlight, Moonlight
Candle, Fireworks
Fluorescent paint, Bioluminescent algae
Incandescent light bulb, LED light
What is an optical instrument?
An optical instrument is a device that manipulates light to enhance vision or capture images.
A device that measures temperature.
An instrument used for sound amplification.
A tool for measuring distance.
How does a magnifying glass work?
A magnifying glass creates a hologram of the object.
A magnifying glass works by reflecting light off a concave mirror.
A magnifying glass uses a digital screen to display enlarged images.
A magnifying glass magnifies objects by bending light rays through a convex lens.
What is the purpose of a prism in optics?
To absorb light and prevent it from passing through.
The purpose of a prism in optics is to refract light and separate it into its constituent colors.
To magnify objects without altering their colors.
To reflect light and create shadows.
Explain how a camera uses light to capture images.
A camera uses sound waves to create images on a screen.
A camera captures images by absorbing light into a battery.
A camera uses light to capture images by focusing it through a lens onto a sensor or film, which records the light.
A camera captures images by projecting light onto a mirror.
What role does light play in photosynthesis?
Light is harmful and inhibits photosynthesis.
Light is only needed for plant growth, not photosynthesis.
Light is a byproduct of photosynthesis.
Light is essential for photosynthesis as it provides the energy required for the process.
