Light and Parts of the Eye video and Review questions

What is the primary source of natural light on Earth?

• The Moon
• The Sun
• Light Bulbs
• Stars

What part of the eye is responsible for focusing light?

• Cornea
• Iris
• Pupil
• Lens

Which part of the eye controls the amount of light that enters?

• Retina
• Iris
• Cornea
• Optic Nerve

What is the function of the retina?

• To focus light
• To detect light and color
• To protect the eye
• To control eye movement

What type of light can humans see?

• Ultraviolet
• Infrared
• Visible light
• X-rays

How does the lens change shape to focus on objects at different distances?

• It becomes thicker for distant objects
• It becomes thinner for distant objects
• It remains the same size
• It changes color

What role do cones play in vision?

• They detect motion
• They help us see in low light
• They allow us to see colors
• They focus light

Which part of the eye is most sensitive to light?

• Cornea
• Pupil
• Retina
• Lens

What happens to your pupils in bright light?

• They get larger
• They get smaller
• They stay the same
• They disappear

Why do we have a blind spot in our vision?

• Because of the lens
• Because of the retina
• Because of the optic nerve
• Because of the cornea