Light Science

Does a translucent material let all the light pass through it?

• No, it does not. Translucent materials let some light pass through them, but part of it is reflected or absorbed.

• Yes, it does. Translucent materials let all the light pass through them.

• No, it does not. Translucent materials absorb all the light.

Tags

NGSS.MS-PS4-2

What is an opaque material?

• A material that lets light pass through it is opaque.

• A material that partially lets light pass through it is opaque.

• An opaque material is a type of material that does not let light pass through it.

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NGSS.MS-PS4-2

What two different types of sources does light come from?

• It can come from potential energy and kinetic energy

• It can come from natural and artificial sources

• It can come from crude oil and natural gas

Which of the following are examples of natural light sources?

• The Sun

• Lightning

• A flashlight

• A mobile phone

Which of the following are examples of artificial light sources?

• Lightning

• The sun

• A flashlight

• A ceiling lamp

Does light travel fast? How fast does it travel?

• Yes, it does. Light travels almost as fast as airplanes fly.

• Yes, it does. Light travels at 300.000 km per second.

• No, it does not. Light travels at 300 km per second.

• No, it does not, light does not travel at all.

2. How many colours does white light have?

• White light is composed of just the three primary colours (red, blue and green).

• White light is not composed of any colour, that is why is white.

• White light is composed of 7 colours like rainbows.

Which of the following are transparent materials.

• A mirror.

• A glass window.

• A plastic bag.

• Sunglasses.

Tags

NGSS.MS-PS4-2

Which of the following can be considered translucent materials?

• Tinted car window.

• Sunglasses.

• Mirror.

• Glass window.

Tags

NGSS.MS-PS4-2

Which of the following can be considered opaque materials?

• A piece of wood.

• A mirror.

• A book.

• A glass window.

Tags

NGSS.MS-PS4-2