1. If a ball is 0.75 Kg mass and it has a volume of 1.5 Liter, its...
Question:
1. If a ball is 0.75 Kg mass and it has a volume of 1.5 Liter, its density is _________ and it will __________ in water.
| a. | 1.5 kg/L, float | |
| b. | 0.5 kg/L, sink | |
| c. | 0.5 kg/L, float | |
| d. | 1.5 kg/L, sink |
2. The specific heat capacity of anything is the amount of energy (calories) it takes to raise 1g of it 1oC. For example, water has the specific heat capacity of 1.0 calories/goC. What is the specific heat capacity of wood, if it takes 25 calories, to heat 2g of it 5oC?
| a. | 25 calories/goC | |
| b. | 250 calories/goC | |
| c. | 2500 calories/goC | |
| d. | 2.5 calories/goC |
3. If a system does 60 Joules of external work, and 140 Joules of heat is added to the system, what is the net thermal energy of the system?
| a. | 80 J | |
| b. | 40 J | |
| c. | 200 J | |
| d. | 100 J |
4. Which of these is a greater amount of thermal energy: 1 calorie or 1 Joule?
5. What are the four common phases of matter?
6. If a stone has a density of 6.0kg/L, and its volume is 0.25L what is the stone's mass?
| a. | 24 kg | |
| b. | 15 kg | |
| c. | 1.5 kg | |
| d. | 2.4 kg |
7. What is the temperature at which all kinetic motion stops (answer in degrees and units)?
8. A 16kg rock displaces 8L of water when it is submerged. What is its density?
| a. | 0.5 kg/L | |
| b. | 4 kg/L | |
| c. | 2 kg/L | |
| d. | 8 kg/L |
9. If you have 500ml of water at 50oC and 500ml of water at 76oC and you then mix them together, what is the temperature after they are combined?
10. What is the pressure of water in a pool at 3 meters down from the surface (in N/m2), if pressure = weight density x depth (assume g=10m/s2)?
| a. | 30,000N/m2 | |
| b. | 30N/m2 | |
| c. | 300N/m2 | |
| d. | 10,000N/m2 |
11. If the force of gravity by Professor Dave is 600N, what is the pressure if he stands on your back with tennis shoes (area = 100cm2)?
| a. | 6N/cm2 | |
| b. | 0.06N/cm2 | |
| c. | 600N/cm2 | |
| d. | 60,000N/cm2 |
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