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Fundamentals of Light and Optics

Optics

An introduction to the basic properties of light, reflection, refraction, and color for young learners.

science light physics

10 Questions Easy Ages 5+ Jul 28, 2026

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About this Study Set

This study set covers Optics through 10 practice questions. An introduction to the basic properties of light, reflection, refraction, and color for young learners. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

Questions & Answers

Browse all 10 questions from the Fundamentals of Light and Optics study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 What is the primary source of light for the Earth?

A The Moon
B The Sun
C A flashlight
D A candle

2 Which of these objects is transparent, allowing most light to pass through it?

A A wooden door
B A clear glass window
C A thick metal sheet
D A cardboard box

3 What happens when light rays bounce off a smooth, shiny surface like a mirror?

A Refraction
B Absorption
C Reflection
D Diffraction

4 Which color of light has the longest wavelength in the visible spectrum?

A Red
B Violet
C Blue
D Green

5 What is the name of the phenomenon where light bends when passing from one medium to another, such as from air to water?

A Reflection
B Dispersion
C Refraction
D Polarization

6 When white light passes through a prism, it separates into different colors. What is this band of colors called?

A A glow
B A spectrum
C A shadow
D A reflection

7 What do we call an object that does not allow any light to pass through it?

A Transparent
B Translucent
C Opaque
D Reflective

8 Which part of the human eye acts like a lens to focus light?

A The pupil
B The cornea
C The iris
D The eyelid

9 What creates a shadow?

A An object blocking light
B Light reflecting off a wall
C Light bending through water
D The sun setting

10 Which of these materials is translucent, letting some light through but scattering it?

A Clear glass
B Frosted glass
C Solid steel
D Black construction paper

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