### PHYS-1000 Exam 1 Sample Questions / Answers

1 - D

2 - C

3 - A

4 - C

5 - A

6 - E (27m/s × 15sec = 405 m)

7 - D

8 - E (1st Law, Net Force = 0) ***

9 - A ***

10 - D ***

*** - Went over in class 1-30-2012 M

### PHYS-1000 Exam 2 Sample Questions / Answers

1 - D (A = 3rd Law, B = 2nd Law, C = 1st Law for rotations)

2 - B

3 - C

4 - B

5 - A

6 - B (v = r × omega ; so omega = v/r = (27 m/s)/(0.400 m) = 67.5 rad/sec)

7 - D (Fspring = -kx ; double x, doubles the force)

8 - B ( pbefore = pafter ; MV + M(0) = (2M)(½V) )

9 - D (KE = ½mv² and 2×2=4)

10 - B

### 2nd set

11 - D

12 - C

13 - C

14 - D

15 - C

16 - A (K.E. = ½mv², so 70² ÷ 55² = 1.62)

17 - C – the speed is constant, though the velocity is not constant. -- NOTE CHANGE IN ANSWER, NOT "D".

18 - A

19 - D

20 - D

### PHYS-1000 Exam 3 Sample Questions / Answers

1 - C

2 - D

3 - D

4 - A

5 - D

6 - B

7 - A

8 - B

9 - D – it emphasizes the total mass and total dimensions of objects. (the "d" may have been missing)

10 - D

11 - C (P = rho × g × h = 1000kg/m³ × 9.81m/s² × 10.0m = 98,100 Pa)

### 2nd Set

12 - B (2nd Law Efficiency = Actual Efficiency ÷ Carnot Efficiency = 0.40 ÷ 0.50 = 0.80)

13 - C

14 - C (It's not D because since TA > TB, then QA > QB.)

15 - D

16 - B

17 - B

18 - B (150°F is too cool to bake ; 150°C = 302°F or at least you know it is higher than the boiling point of water ; 150K = -123°C = -189°F)

19 - B

20 - B

21 - C

22 - B (FALSE -- The Force is the same by Newton's 3rd Law, but the Pressure will be higher on the pointy end.)

Last Update: 03 April 2012 Tuesday