4th grade Science

Three ways light reacts when it strikes an object are:

• reflection

• refraction

• echolation

• absorption

Tags

NGSS.MS-PS4-2

_________________ is the bending of a light wave as it moves from one substance to another.

• Reflection

• Absorption

• Refraction

Tags

NGSS.MS-PS4-2

True or False: Light slows down when it enters a flat lens and speeds up when it exits.

• True

• False

Tags

NGSS.MS-PS4-2

Opaque objects allow _________ light through

• all

• some

• no

Tags

NGSS.4-PS4-2

A prism separates white light into a ______________.

• dark light

• spectrum

• wave

Tags

NGSS.MS-PS4-2

Which is the correct order from smallest to largest?

• universe, star, galaxy

• star, universe, galaxy

• star, galaxy, universe

• galaxy, universe, star

How are radio telescopes different from optical telescopes?

• Radio telescopes use lenses and mirrors to gather light and optical telescopes collect radio waves.

• They are not different.

• Radio telescopes play music and optical telescopes see things far away.

• Optical telescopes use lenses and mirrors to gather light. Radio telescopes collect radio waves and not light.

What advantage does a space telescope have compared to an optical telescope?

• It is outside Earth's atmosphere and can see things farther away.

• It uses lenses and mirrors to capture images.

• It is bigger.

• It collects radio waves and does not need light.

Why can't we see stars during the day?

• The sun is too bright for us to see other stars during the day.

• Stars do not produce energy during the day.

• The stars are on the other side of Earth during the day.

• The sun is the only star.

Tags

NGSS.MS-ESS1-1

Are all stars the same distance from Earth?

• Yes

• No