Producing Visible Light

If two light bulbs produce the same amount of energy, what would cause one of the bulbs to look dimmer than the other?

• distance

• wattage

• color

• size

When you add all secondary and primary colors of light together, what color is produced?

• white

• brown

• black

• grey

Which are the three SECONDARY colors of light?

• Magenta, Yellow, Cyan

• Magenta, Green, Cyan

• Green, Orange, Purple

• Green, Cyan, Orange

___________ is a form of energy that we can see with our eyes.

• Radio Waves

• Visible Light

• Ultraviolet

• Reflection

Of the visible spectrum, what color has the longest wavelength?

• Blue

• Green

• Yellow

• Red

• Violet

Light is a type of energy that travels as an ______________ ____________.

• Longitudinal Wave

• Electric Current

• Electromagnetic Wave

• Magnetic Wave

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

The diagrams provided here represent two light waves. Which conclusion is supported by the data provided in the diagrams?

• Light Wave #1 will appear brighter than Light Wave #2.

• Light Wave #1 will be a different color than Light Wave #2.

• Light Wave #1 will reflect more easily than Light Wave #2.

• Light Wave #1 will travel in a straight line, but not Light Wave #2.

Tags

NGSS.MS-PS4-1

A rainbow happens when sunlight passes through water droplets in the air. Which of the following best explains why?

• Water droplets of different sizes filter out light of different colors.

• Different chemicals in the water get energy and give off light of different colors.

• Light of different colors travels at different speeds through different-sized water droplets.

• Light of different wavelengths is bent at different angles.

Tags

NGSS.MS-PS4-2

What is the primary source of visible light on Earth?

• The Moon

• The Sun

• Artificial lights

• Stars

Tags

NGSS.MS-ESS1-1

Which process in a light bulb produces visible light?

• Conduction

• Convection

• Incandescence

• Radiation