Light Da Vinci Theme Test

Which of the following is NOT a primary color of light?

• Red

• Green

• Yellow

• Blue

What is the speed of light in a vacuum?

• 300,000 km/s

• 150,000 km/s

• 1,000,000 km/s

• 30,000 km/s

What phenomenon causes a straw in water to appear bent?

• Reflection

• Refraction

• Diffraction

• Absorption

Which part of the human eye detects color?

• Rods

• Cones

• Cornea

• Optic nerve

What type of electromagnetic radiation has the shortest wavelength?

• Ultraviolet

• X-rays

• Gamma rays

• Infrared

A beam of light takes 2 seconds to reach a mirror and return. How far away is the mirror?

• 150,000 km

• 300,000 km

• 600,000 km

• 900,000 km

A flashlight creates a shadow three times the height of an object. If the object is 50 cm tall, how long is the shadow?

• 100 cm

• 150 cm

• 200 cm

• 250 cm

If light travels 299,792,458 meters per second, how far does it travel in 5 seconds?

• 1.5 billion meters

• 1.2 billion meters

• 1.8 billion meters

• 2 billion meters

A square mirror has an area of 16 cm². What is the length of each side?

• 2 cm

• 4 cm

• 8 cm

• 16 cm

If the angle of incidence of a light beam is 30°, what is the angle of reflection?

• 15°

• 30°

• 45°

• 60°