heat energy

What is NOT a source of heat?

• rubbing something together quickly

• the sun

• electricity

• sweating

How do molecules move in a hot object?

• they don't move

• slowly

• quickly

• normal speed

Tags

NGSS.MS-PS1-4

Shay plugs in her computer. When she places it on her lap, she notices it is hot. What is the source of heat?

• sun

• friction

• mixing objects together

• electricity

Which is the source of heat that is caused when objects rapidly rub against each other?

• electricity

• friction

• sunlight

• mixing things together - chemical change

Tags

NGSS.MS-PS3-5

Tires rubbing on the street and making smoke comes from which source of heat?

• electricity

• friction

• sunlight

• mixing things together - chemical change

Tags

NGSS.MS-PS3-5

Heat moves from ____________ to _____________.

• any way it wants

• cold to hot

• warm to luke warm

• hot to cold

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which material will heat travel through the fastest?

• Plastic

• Wood

• Metal

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

How do molecules react when heat energy is added to them?

• They feel warmer but stay in place

• They feel warmer and move slower.

• They feel warmer and move faster

• Molecules do not react with heat energy only solar energy

Tags

NGSS.MS-PS1-4

What is Conduction?

• When heat is passed from particle to particle through an object.

• When particles get heated, expand, and become less dense.

• When heat transfers by waves through empty space.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

What is Convection?

• When heat is passed from particle to particle through an object.

• When particles get heated, expand, and become less dense.

• When heat transfers by waves through empty space.

Tags

NGSS.MS-PS3-3