Conceptual Physics Ch 21 - Thermal Expansion

The liquid in a thermometer ______________ as the temperature increases.

• expands
• disappears
• freezes
• explodes

Tags

NGSS.MS-PS1-4

The most common temperature scale used in the physical sciences where temperatures are 273 degrees more than temperatures on the Celsius scale is called the _______________ scale.

• Fahrenheit
• Kelvin
• Pound
• Celsius

An increase in the volume of a substance when the temperature increases is called ___________________________________.

• kinetic energy
• thermal expansion
• temperature
• heat

Tags

NGSS.MS-PS1-4

No more energy can be removed from matter at

• its freezing point

• 0°C

• absolute zero

• 273 K

Tags

NGSS.MS-PS1-4

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

What is Thermal Contraction

• The movement of particles.

• 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-PS3-4

Objects gain heat and _________. 

• expand
• contract

Tags

NGSS.MS-PS1-4

When temperature decreases, distance between molecules ____________.

• increases

• decreases

• stays the same

Tags

NGSS.MS-PS1-4

What is the purpose of the expansion joints in bridges?

• They contract and expand with weather changes

• To avoid collapse due to high winds

• To stop bridges from expanding and contracting

• They allow the bridge to expand and contract freely

Tags

NGSS.MS-PS2-2

Is the following statement true or false?

An object that expands more when heated, will also contract more when the temperature is reduced

• True

• False

Tags

NGSS.MS-PS1-4