Temperature and thermal expansion

The most common temperature scale used in the United States - where water freezes at 32 degrees and boils at 212 degrees is called the __________________________ scale.

• Celsius
• Pound
• Kelvin
• Fahrenheit

Convert: 25.0 ^oC to ^oF:

• 77 F
• 77 C
• 100 F
• 100 C

Convert: 150 ^oF to ^oC:

• 65.5 C
• 65.5 F
• 338.5 C
• 338.5 F

Tags

NGSS.MS-PS1-4

Convert: 253 C to K:

• 526 K
• 625 K
• 0 K
• 186 K

Tags

NGSS.MS-PS1-4

Convert: 186.5 K to C

• -86.4 C
• -50 C
• -68.4 C
• 180 K

Tags

NGSS.MS-PS1-4

Convert: -317.2 F to C:

• -194 C
• 79 K
• 230.9 C
• -48.2 C

Tags

CCSS.7.NS.A.3

Calculate the change in length of a 100mm aluminium bar that has increased in temperature by 55⁰C.  
Take the coefficient of expansion to be 25 x 10^-6

• 0.258mm
• 0.1375mm
• 1.23mm
• 1.37mm

Calculate the change in temperature of an 900mm aluminium bar, that has increased in length to 901.035mm.
 α = 25 x 10^-6

• 12^oC
• 34.5^oC
• 57^oC
• 46^oC

The length of copper wire at 20^oC is 4.5m. Calculate its new length when the temperature is 95^oC. Given α = 1.7×10^{-5 o}C^-1

• 4.55m

• 5.41m

• 5.11m

• 4.505m

A silver plate of 16cm2 is heated from 20 degrees to 100 degrees. What is the increase of area?
assume  $\alpha=2\times10^{-5}$  

• 0.051

• 16.051

• 0.0256

• 16.0256