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- 1. Multiple ChoiceSpecific 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?WaterWoodBoth are same
- 2. Multiple Choice___________ is measured by the unit Joules.Heat energyTemperatureSpecific heat
- 3. Multiple ChoiceWhat is the formula to calculate heat energy required to raise the temperature of any substance?Q=mc∆tQ=mcQ= ½mvm=QC
- 4. Multiple ChoiceThe symbol for specific heat is .......cQmt
- 5. Multiple Choice
Which statement defines the thermal capacity (heat capacity) of a solid body?
the energy needed to melt the body without a change in temperature
the energy needed to raise the temperature of the body by one degree Celsius
the increase in the volume of the body when its temperature is raised by one degree Celsius
the total amount of internal energy in the body
- 6. Multiple Choice
The heat capacity of a substance depends on the followings, EXCEPT:
mass of substance.
type of substance.
Quantity of heat supplied.
ice point and steam point.
- 7. Multiple Choice
A metal has a specific heat capacity of 360 J / (kg 0C). An object made of this metal has a mass of 2.0 kg.
What is the thermal capacity (heat capacity) of the object?
180 J / 0C
180 J / kg
720 J / 0C
720 J / kg
- 8. Multiple Choice
The specific heat capacity of a substance is the quantity of heat required to
melt 1 kg of the substance.
raise the temperature of the substance by 10C.
raise the temperature of 1 kg of the substance by 10C.
- 9. Multiple Choice
A liquid X of mass 1 kg requires 3800 J of heat to raise its temperature by 10C.
Calculate the total heat required to raise the temperature of 1 kg of liquid X by 30C.
3800 J
7600 J
11 400 J
- 10. Multiple Choice
The time taken by an electric heater to raise the temperature of 4 kg of water from 250C to 300C is 1 minute. If the specific heat capacity of water is 4200 J kg-1 oC-1, calculate the power of the heater.
70 W
140 W
700 W
1400 W
- 11. Multiple ChoiceWater has a specific heat of 4184 J/KgºC. Wood has a specific heat of 1760 J/KgºC. What material needs more energy to raise the temperature 1ºCWoodWaterBoth are the same
- 12. Multiple Choice
Copper, Stainless Steel, Carbon Steel, and Zinc were all heated using the same thermal energy. What material would be the coolest after being heated?CopperCarbon SteelZincStainless Steel - 13. Multiple ChoiceA material was cooled from 100ºC to 40ºC. What is the temperature change?60ºC40ºC-60ºC-40ºC
- 14. Multiple ChoiceCopper, Stainless Steel, Carbon Steel, and Zinc were all heated using 10,000 JOULES of thermal energy. What material would be have the LARGEST change in temperature?CopperCarbon SteelZincStainless Steel
- 15. Multiple ChoiceWhen a piece of aluminum foil is taken out of the oven and cools from 100° C to 50°C, What is the change in temperature?50°0°100°150°
- 16. Multiple ChoiceThere are 2 pans of water, one has 100 mL in it and one has 1000mL. You add 4000 joules of energy, which one has the bigger change in temperature?100 mL1000 mLThey the same material so they both heat to the same temperatureThey both will cool down.
- 17. Multiple ChoiceIf I have 2 blocks of Aluminium (one of 1kg and one of 10 kg) and heat them up with 6,000 Joules of energy.
Which one will have the SMALLEST change in temperature?1 kg10 kgThey both heat up to the same temperatureIt depends on the temperature of the room - 18. Multiple Choice
For a skillet, used for cooking, do you want a high or low specific heat capacity?
High, so that it will need more energy to heat up
Low, so that it will change temperature quickly
- 19. Multiple ChoiceA metal cube at temperature of 10°C immersed in a liquid at temperature of 70°C.
What is the temperature of the metal cube when thermal equilibrium is achieved between the cube and the liquid?Between 10°C and 70°CMore than 70°CLess than 10°CSame as the room temperature - 20. Multiple Choice
If 1 kg of water and 1 kg of paraffin are supplied with the same amount of heat, the temperature rise of the paraffin is about twice that of water. This is because
the freezing point of paraffin is less than that of water
the force of attraction between the molecules of paraffin is less than that of water
the specific heat capacity of paraffin is less than that of water
the specific latent heat of fusion of paraffin is less than that of water
- 21. Multiple Choice
Given that 10 g of copper block and 100 g of copper block are heated with the same amount of heat. It is observed that 10 g of copper block is hotter than 100 g of copper block. Which of the following is true?
heat capacity of 10 g copper block is lower than 100 g copper block
specific heat capacity of 10 g copper block is lower than 100 g copper block
heat capacity of 10 g copper block is higher than 100 g copper block
specific heat capacity of 10 g copper block is higher than 100 g copper block
- 22. Multiple Choice
Given that 10 g of copper block and 10 g of clay block is heated with the same amount of heat. It is observed that the 10 g copper block is hotter than 10 g of clay block. Which of the following is accurate?
heat capacity of 10 g of copper block is lower than 10 g of clay block
specific heat capacity of 10 g copper block is lower than 10 g clay block
heat capacity of 10 g of copper block is higher than 10 g of clay block
specific heat capacity of 10 g copper block is higher than specific heat capacity of 10 g clay block
- 23. Multiple ChoiceBoth blocks have the same mass and heated with the same amount of heat energy in 40 minutes.
Which statement is correct at the end of 40 minutes?The graphite block has the lowest final temperatureThe final temperature of the graphite block is lower than sodium blockThe final temperature of the graphite block is higher than sodium blockThe sodium block has the highest final temperature - 24. Multiple ChoiceHow many Joules of energy are required to change 10 gram of water from 20 οC to 90 οC?1400 J2800 J210,000 J1,400,000 J
- 25. Multiple Choice
A 15.75-g piece of iron absorbs 1086.75 joules of heat energy, and its temperature changes from 25°C to 175°C. Calculate the specific heat capacity of iron.
460 J/kgoC
1654 J/kgoC
0.46 J/kgoC
1.654 J/kgoC
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