Open book exam.
You have the permission to use your textbooks and any your notes.
Moreover, sometimes you have to use your textbooks to take some table-data.
So, bring with you into the midterm exam your textbooks, worksheets and chapter summaries, calculators and your lucky pencils to fill Scantron cards.
Examples:
1. How much heat is required to rise the temperature of 10 g of aluminum from 20°C to 30°C?
(Hint: Use the table 10.1 in the page 196 to take the specific heat capacity of aluminum, c=0.215 cal/(g °C). )
2. Mercury in a flask has the volume of 10 cm³. What is the mass of this amount of mercury?
(Hint: Use table 9.1 in the page 174 to take the Mercury density, 13.6 g/cm³. )
3. A large rock is dropped from the top of a high cliff (with an initial velocity of zero). How far does it fall in the first 2 second of its flight?
Hint: Use the figure 3.7 in the page 43.
(Hint: Try to predict solutions without calculations. )
4. A driver drives for 2 hours at an average speed of 50 km/h and 1 hour at an average speed of 80 km/h. What is the average speed of the driver for total 3 hour trip?
a) 30 km/h, b) 40 km/h, c) 90 km/h, d) 130 km/h, e) No solution.
5. A driver drives for 2 hours at an average speed of 50 km/h and 1 hour at an average speed of 80 km/h. What is the average speed of the driver for total 3 hour trip?
a) 30 km/h, b) 60 km/h, c) 65 km/h, d) 60 m/s, e) 60.
(Hint: Check units of measurement. )
6. A driver drives for 2 hours at an average speed of 50 km/h and 1 hour at an average speed of 80 km/h. What is the average speed of the driver for total 3 hour trip?
a) 17 m/s, b) 40 m/s, c) 60 m/s, d) 130 km/h, e) No solution.
(Hint: Check units of measurement. )
7. A driver drives for 2 hours at an average speed of 50 km/h and 1 hour at an average speed of 80 km/h. What is the average speed of the driver for total 3 hour trip?
a) 30 m/s, b) 40 m/s, c) 60 m/s, d) 130 km/h, e) No solution.
(Hint: Check units of measurement. )
8. A ball is thrown upward with an initial velocity of 15 m/s. What is the magnitude of the ball’s velocity 1 second after it is thrown? Use the approximate value of g = 10 m/s².
a) 5 m/s², b) 5, c) 5 magnitudes, d) 25 m/s, e) no solution.
(Hint: Check units of measurement. )
9. Two identical objects have different speeds. The kinetic energy of the first object is 10 J. Speed of the second object is 3 times greater than the speed of the first object. What is kinetic energy of the second object?
(Hint: Do analysis of quantitative relationships between physics parameters in physics formulas: directly proportional, inversely proportional, proportional to the square, inversely proportional to the square. Don't limit your work with the formulas only by substitutions of symbols by numbers and doing calculations. )
You have the permission to use your textbooks and any your notes.
Moreover, sometimes you have to use your textbooks to take some table-data.
So, bring with you into the midterm exam your textbooks, worksheets and chapter summaries, calculators and your lucky pencils to fill Scantron cards.
Examples:
1. How much heat is required to rise the temperature of 10 g of aluminum from 20°C to 30°C?
(Hint: Use the table 10.1 in the page 196 to take the specific heat capacity of aluminum, c=0.215 cal/(g °C). )
2. Mercury in a flask has the volume of 10 cm³. What is the mass of this amount of mercury?
(Hint: Use table 9.1 in the page 174 to take the Mercury density, 13.6 g/cm³. )
3. A large rock is dropped from the top of a high cliff (with an initial velocity of zero). How far does it fall in the first 2 second of its flight?
Hint: Use the figure 3.7 in the page 43.
(Hint: Try to predict solutions without calculations. )
4. A driver drives for 2 hours at an average speed of 50 km/h and 1 hour at an average speed of 80 km/h. What is the average speed of the driver for total 3 hour trip?
a) 30 km/h, b) 40 km/h, c) 90 km/h, d) 130 km/h, e) No solution.
5. A driver drives for 2 hours at an average speed of 50 km/h and 1 hour at an average speed of 80 km/h. What is the average speed of the driver for total 3 hour trip?
a) 30 km/h, b) 60 km/h, c) 65 km/h, d) 60 m/s, e) 60.
(Hint: Check units of measurement. )
6. A driver drives for 2 hours at an average speed of 50 km/h and 1 hour at an average speed of 80 km/h. What is the average speed of the driver for total 3 hour trip?
a) 17 m/s, b) 40 m/s, c) 60 m/s, d) 130 km/h, e) No solution.
(Hint: Check units of measurement. )
7. A driver drives for 2 hours at an average speed of 50 km/h and 1 hour at an average speed of 80 km/h. What is the average speed of the driver for total 3 hour trip?
a) 30 m/s, b) 40 m/s, c) 60 m/s, d) 130 km/h, e) No solution.
(Hint: Check units of measurement. )
8. A ball is thrown upward with an initial velocity of 15 m/s. What is the magnitude of the ball’s velocity 1 second after it is thrown? Use the approximate value of g = 10 m/s².
a) 5 m/s², b) 5, c) 5 magnitudes, d) 25 m/s, e) no solution.
(Hint: Check units of measurement. )
9. Two identical objects have different speeds. The kinetic energy of the first object is 10 J. Speed of the second object is 3 times greater than the speed of the first object. What is kinetic energy of the second object?
(Hint: Do analysis of quantitative relationships between physics parameters in physics formulas: directly proportional, inversely proportional, proportional to the square, inversely proportional to the square. Don't limit your work with the formulas only by substitutions of symbols by numbers and doing calculations. )
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