Heat Capacity

Which will heat up faster?

• copper

• granite

• iron

• basalt

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

If I heat up 2 pans of water one has 100 mL in it and one has 1000mL. Which one heats up the fastest?

• 100 mL
• 1000 mL
• They both heat up at the same speed
• They cool down.

Tags

NGSS.MS-PS3-4

How much energy is needed to raise the temperature of 5.0 grams of lead from 25°C to 35°C? [specific heat (c) = 0.129 J/(g•°C)]

• 6.45 J/(g•°C)

• 6.45 J

• 16.1 J/(g•°C)

• d.16.1 J

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The temperature of a 6.0 g sample of glass changed from 20.0°C to 45.0°C when it absorbed 550 J of heat. What is the specific heat of this glass?

• 0.27 J/g °C

• 3.7 J/g °C

• 130 J/g °C

• 12 J/g °C

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which of the following best explains why the sand at the beach is hotter than the water?

• Sand has a higher specific heat than water.

• Sand has a lower specific heat than water.

• There is more water than sand at the beach.

• There is more sand than water at the beach.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Specific heat of water is  4.18 J/g°C. Specific heat of wood is 1.760 J/g°C What material needs more heat energy to raise the temperature?

• Water
• Wood
• Both are same

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is the formula to calculate heat energy required to raise the temperature of any substance?

• Q=mc∆t

• Q=mH

• Q= ½mv

• m=QC

The heat absorbed by melting a solid is known as

• heat of fusion

• heat of solid

• heat of liquid

• heat of vaporization

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The amount of heat required to change the phase of a substance depends on two factors which are (choose all that apply).

• surrounding temperature

• temperature change

• material

• the mass

What does "ΔT" stand for?

• A change in time

• A change in temperature in degrees C

• A change in mass

• Addition of temperature in degrees F