Problems

Problems are rate in degree of difficulty from *(easiest) to ****(most difficult).

Section 2.1 Systems of Units

*2.1.1. The following questions will measure your SIQ.

a. Which is (are) a correct SI symbol(s)?

1. nm

2. °K

3. sec

4. N/mm

b. Which is (are) consistent with SI usage?

1. MN/m²

2. GHz/s

3. kJ/[(s)(m³)]

4. °C/M/s

c. Atmospheric pressure is about

1. 100 Pa

2. 100 kPa

3. 10 MPa

4. 1 GPa

d. The temperature 0°C is defined as

1. 273.15°K

2. Absolute zero

3. 273.15 K

4. The freezing point of water

e. Which height and mass are those of a petite woman?

1. 1.50 m, 45 kg

2. 2.00 m, 95 kg

3. 1.50 m, 75 kg

4. 1.80 m, 60 kg

f. Which is a recommended room temperature in winter?

1. 15°C

2. 20°C

3. 28°C

4. 45°C

g. The watt is

1. 1 joule per second