10th CLASS P.S QUIZ - 1(HEAT) Prepared by PRABHAKAR MIRIYALA

The value of -25⁰C in Kelvin scale is

• 25 K

• -298 K

• 248 K

• 0 K

The amount of energy required to raise the temperature 1ºC for every kilogram is called____?

• Thermal Energy
• Specific Heat
• Temperature
• Kinetic Energy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What unit do you use to measure Heat Energy?

• J/Kg ºC

• Kg

• ºC

• J

A high specific heat means...

• It requires less energy to change temperature

• It requires more energy to change temperature

• It heats up very quickly

• It cools down very quickly

The specific heat of aluminum is 0.21 cal/g°C.  How much heat(Q) is released when a 10 g piece of aluminum foil is taken out of the oven and cools from 100° to 50°?

• 105 J
• 10.5 J
• 1.05 J
• 50 J

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

When holding a cup of ice water, your hand becomes cold. How does the heat transfer?

• From the cold cup to your hand

• From the cold cup to the air

• From the ice to your hand

• From your hand to the cold cup.

1 cal = ----------- joules

• 273

• 4.186

• 100

• -273

Three bodies aA,B and C are in thermal equilibrium. The temperature of A is 60⁰C, then the temperarure of body C is ------

• 20⁰C

• 333⁰C

• 60 K

• 333 K

SI unit of specific heat is

• J/Kg.K

• cal/gr.⁰C

• joiles

• calorie

Large oceans moderate the climatic temperatures of surrounding coastal land areas because the temperature of ocean water changes

• rapidly, due to water’s low specific heat

• rapidly, due to water’s high specific heat

• slowly, due to water’s low specific heat

• slowly, due to water’s high specific heat