Thermo Expansion

3. If the atoms of an object are moving or vibrating fast, the temperature would be...

• Hot
• Cold
• Unknown

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

4. If the atoms of an object are moving or vibrating slow, the object would feel...

• Cold
• Hot
• Unknown

Tags

NGSS.MS-PS1-4

What is Thermal Contraction 

• A Potato
• A decrease in a materials  volume when its temperature decreases 
• The movement of fluids in a cycle because of convection 
• A material through which  thermal energy does not flow easily.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is Thermal expansion?

• The transfer of thermal energy between materials by the collisions of particles 
• Is a decrease in a materials volume when temperature decreases 
• An increase in a materials volume when temperature increases
• Chicken fried rice

Many objects, such as train tracks and road joints, are specifically designed to allow extra space for ...

• thermal energy
• specific heat
• thermal expansion
• conductors

A bimetallic strip is made up of _____________________ welded together.

• two metals of the same kind 
• two different metals that expand and contract unequally
• two different metals that expand and contract equally

Tags

NGSS.MS-PS3-3

The picture shows a bimetallic strip in a fire alarm. When there is a fire outbreak, the bimetallic strip will get hot, ....

• bend downwards, complete the circuit and the alarm rings.
• bend upwards, open the circuit and the alarm will not ring.
• becomes longer, open the circuit and the alarm will not ring.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

Objects gain heat and _________. 

• expand
• contract

Tags

NGSS.MS-PS1-4

The liquid in the thermometer rises when it is placed in the hot water because ___________. 

• it gains heat from the hot water and expands.
• loses heat from the hot water and contracts. 
• the surrounding air is too warm. 
• the liquid is boiling. 

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

When objects contract upon cooling...

• volume increases and density increases.
• volume increases and density decreases.
• volume decreases and density decreases.
• volume decreases and density increases.

Tags

NGSS.MS-PS1-4