Physics Refraction Quiz Form
Test your understanding of refraction concepts. Answer all questions to the best of your ability.
1. What is refraction?
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The bending of light as it passes from one medium to another
The spreading of light after passing through a narrow slit
The bouncing of light off a surface
The absorption of light by a material
2. Which law mathematically describes the relationship between the angles of incidence and refraction?
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Snell's Law
Newton's First Law
Hooke's Law
Ohm's Law
3. What is the formula for Snell's Law?
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n₁ sin θ₁ = n₂ sin θ₂
F = ma
V = IR
E = mc²
4. If the angle of incidence is 30° and the refractive index of the first medium is 1.0, what is the refracted angle in water (n = 1.33)? (Round your answer to the nearest whole number in degrees.)
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5. Light travels from glass (n = 1.5) into air (n = 1.0). What is the critical angle for total internal reflection? (Round to the nearest degree.)
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6. When a light ray moves from air into a denser medium, what happens to its speed?
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It decreases
It increases
It remains the same
It becomes zero
7. Which of the following is NOT an example of refraction?
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A straw appearing bent in a glass of water
A rainbow forming after rain
An echo in a canyon
A lens focusing light
8. Match each term with its correct definition.
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Rows
The angle between the incident ray and the normal
The angle at which total internal reflection occurs
The angle between the refracted ray and the normal
Definition 1
Angle of incidence
Angle of refraction
Critical angle
Angle of incidence
Angle of refraction
Critical angle
Angle of incidence
Angle of refraction
Critical angle
Definition 2
Angle of incidence
Angle of refraction
Critical angle
Angle of incidence
Angle of refraction
Critical angle
Angle of incidence
Angle of refraction
Critical angle
Definition 3
Angle of incidence
Angle of refraction
Critical angle
Angle of incidence
Angle of refraction
Critical angle
Angle of incidence
Angle of refraction
Critical angle
9. A beam of light passes from water (n = 1.33) into glass (n = 1.5). If the angle of incidence in water is 25°, what is the angle of refraction in glass? (Round to the nearest whole number in degrees.)
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10. Which statement best explains why a fish in a pond appears closer to the surface than it actually is?
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Light rays bend away from the normal as they leave the water
Light rays bend toward the normal as they enter the water
The density of water makes the fish appear larger
The water surface acts as a mirror
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