GPhysics CM1

Which of the following are physical quantities?

I. Mass

II. Length

III. Area

• I and II

• 2. I and III

• II and III

• I, II, and III

Which of the following are standard units of measurement?

I. Kilogram

II. Kilometer

III. Candela

• I and II

• I and III

• II and III

• I, II and III

What is the standard unit of temperature according to SI units?

• Celsius

• Fahrenheit

• Kelvin

• Degrees

Which of the following does not belong to the group?

• kilo-

• hecto-

• mega-

• nano

Which of the following statements are true?

I. 1mm = 1,000m

II. 0.00001kg = 1cg

III. 1daL = 100dL

• I and II

• I and III

• II and III

• I, II and III

What is 3.67 x 10^-2 in standard form?

• 367.00

• 0.036700

• 3.67

• 0.0367

Which of the following is true about scientific notation?

I. The power of ten on the notation should only have positive exponents.

II. Coefficients can be positive or negative numbers including whole and decimal numbers.

III. The absolute value of the coefficient is greater than or equal to 1 but it should be less 10.

• I and II

• I and III

• II and III

• I, II and III

Which correctly describes this student’s experimental data when the accepted value is 1.43?

• accurate but not precise

• precise but not accurate

• neither accurate nor precise

• both accurate and precise

The density of an element is 18.3 g/cm³. What is this value in kilograms per cubic meters?

• 1.83

• 0.183

• 183.

• 18.3

Which of the following is true about significant figures?

I. The expression 619 has three nonzero digits. Thus, it has 3 significant figures.

II. For 201, the zero between 2 and 1 is significant Hence, 201 has 3 significant figures.

III. In 0.0006, all zeros are leading zeros which are not significant. Thus, 0.0006 has 1 significant figure.

• I and II

• II and III

• I and III

• I, II, and III