Light & Shadows Quiz

What is a source of light?

• A shadow

• The sun

• A wooden table

Answer explanation

The sun is a source of light, emitting light and heat to illuminate our planet.

Tags

NGSS.4-PS4-2

Which of the following is a characteristic of a transparent object?

• It blocks all light.

• It lets no light through.

• It lets light pass through.

Answer explanation

A transparent object is characterized by letting light pass through it, unlike opaque objects that block all light.

Tags

NGSS.MS-PS4-2

What happens when light hits an opaque object?

• The light passes through.

• A shadow is formed.

• The light is reflected in all directions.

Answer explanation

When light hits an opaque object, a shadow is formed because the light is blocked by the object and cannot pass through.

Tags

NGSS.MS-PS4-2

Which of the following materials is translucent?

• A brick wall

• Waxed paper

• Aluminum foil

Answer explanation

Waxed paper is translucent, allowing light to pass through but diffusing it. The other options, a brick wall and aluminum foil, are not translucent materials.

Tags

NGSS.MS-PS4-2

How can you make a shadow?

• By placing an object close to a light source

• By shining a light through a transparent object

• By looking in a mirror

Answer explanation

To make a shadow, you need to place an object close to a light source, which will block the light and create a shadow.

Tags

NGSS.MS-PS4-1

What is reflection?

• The spreading out of light in all directions

• The bouncing back of light from a surface

• The absorption of light by a surface

Answer explanation

Reflection is the bouncing back of light from a surface, not the spreading out or absorption of light.

Tags

NGSS.MS-PS4-2

Which of the following is an example of a light source?

• A painted wall

• A candle

• A shadow

• A piece of cloth

Answer explanation

A candle is an example of a light source because it emits light when it burns, unlike a painted wall, shadow, or piece of cloth.

Tags

NGSS.MS-PS4-2

Why can't you see through opaque materials?

• Because they reflect all the light

• Because they let all the light through

• Because they block and absorb light, not allowing it to pass through

Answer explanation

Opaque materials block and absorb light, preventing it from passing through, which is why you can't see through them.

Tags

NGSS.MS-PS4-2

What determines the size of a shadow?

• The color of the light source

• The distance between the object and the light source

• The temperature of the light source

Answer explanation

The size of a shadow is determined by the distance between the object and the light source.

Which of the following objects would create the clearest shadow?

• A transparent glass

• A translucent plastic sheet

• An opaque book

Answer explanation

The clearest shadow would be created by an opaque book as it completely blocks the light, unlike a transparent glass or translucent plastic sheet which allow light to pass through.