Unit 21:Light and Heat

What is light?

• A form of energy that lets us see heat

• A form of energy that lets us see objects

• A source of sunlight

• A type of colour

Which type of material is this : 'Materials only let some light pass through them'

• Transparent

• Opaque

• Transformation

• Translucent

Why does the straw appear to be bent?

• light is reflected

• light is absorbed

• light is turned

• light is refracted

Tags

NGSS.MS-PS4-2

What do we call a material that light can travel through?

• air

• water

• medium

• pathway

Tags

NGSS.MS-PS4-2

When light bends it is ______

• Reflection
• Absorption
• refraction 
• optical density

Tags

NGSS.MS-PS4-2

• Reflection
• Refraction

Tags

NGSS.MS-PS4-2

• Reflection
• Refraction

Tags

NGSS.MS-PS4-2

How is heat transferred when boiling a pot of water on the stove?

• conduction
• convection
• combustion
• radiation

A group of friends gather around a fire to stay warm.

• conduction
• convection
• radiation

Tags

NGSS.MS-PS3-3

The handle of a metal spoon warms up when it is placed in a hot bowl of soup because of

• Convection

• Conduction

• Radiation

• insulation.

Tags

NGSS.MS-PS1-4