27.6 Understanding Light and Shadows

What is a thin beam of light called?

• Wave

• Ray

• Beam

• Shadow

What is formed where light rays cannot reach?

• Reflection

• Refraction

• Shadow

• Penumbra

What kind of light source produces sharp shadows?

• A large light source nearby

• A large light source far away

• A small light source nearby

• Both b and c

What is a total shadow called?

• Penumbra

• Umbra

• Ray

• Beam

Tags

NGSS.MS-ESS1-1

What is a partial shadow called?

• Umbra

• Ray

• Penumbra

• Beam

Tags

NGSS.5-ESS1-2

When does a penumbra occur?

• When all light is blocked

• When no light is blocked

• When some light is blocked and other light fills in

• When light is completely absorbed

Tags

NGSS.MS-ESS1-1

What causes a solar eclipse?

• Earth passing between the sun and the moon

• The sun passing between Earth and the moon

• The moon passing between Earth and the sun

• A cloud blocking the sun

Tags

NGSS.MS-ESS1-1

During a solar eclipse, what do you experience if you stand in the umbra?

• Partial eclipse

• Brief darkness

• Crescent sun

• No change

Tags

NGSS.MS-ESS1-1

What is the relationship between the speed, wavelength, and frequency of light?

• Speed = wavelength + frequency

• Speed = wavelength - frequency

• Speed = wavelength × frequency

• Speed = wavelength / frequency

Tags

NGSS.HS-PS4-1

Which of the following best describes the difference between umbra and penumbra?

• Umbra is a partial shadow, penumbra is a total shadow.

• Umbra is a total shadow, penumbra is a partial shadow.

• Both are total shadows.

• Both are partial shadows.

Tags

NGSS.MS-ESS1-1