Specific heat

An object heats up from 35 to 65 degrees, what is the temperature change?

• 35 degrees

• 65 degrees

• 30 degrees

• 100 degrees

An object heats up from 35 to 65 degrees, what is the temperature change?

• 35 degrees

• 65 degrees

• 30 degrees

• 100 degrees

Tags

NGSS.MS-PS3-4

The temperature change of a 2kg object whose specific heat is 10 J/Kg C is 45 degrees, whats the energy? 

• 900 J

• 450 J

• 90 J

• 20 J

Tags

NGSS.HS-PS3-1

Which of these beakers has the highest specific heat capacity?

• Beaker A

• Beaker B

• They both have the same specific heat capacity

• You can not say

What are the units of energy?

• J

• ^oC

• ^oK

• Kg

What are the units of specific heat capacity?

• J

• ^oC

• J/Kg ^oC

• Kg

Liquid A specific heat capacity is 800 J/Kg ^oC, and liquid B's specific heat is 8200 J/Kg ^oC which needs more energy to heat the same amount of these liquids.

• Liquid A

• Liquid B

• Both are the same

• we dont know

Tags

NGSS.HS-PS3-4

Which has the bigger specific heat capacity?

• Liquid

• metal

• Both are the same

• we can not predict

Tags

NGSS.HS-PS3-4

Which would be quickest to heat up?

• water

• Aluminium

• Copper

• Depends on how much we give them energy

Calculate the energy required to heat 50g of water from 60°C to 80°C if we know water-specific heat is 4 J/g°C

• 20 J

• 80 J

• 4000 J

• 800J

Tags

NGSS.HS-PS3-4