General Physics 1

Any number that is used to describe a physical phenomenon quantitatively is called:

• Operational definition

• Physical Quantity

• Scientific Notation

• Derived Quantity

The following are fundamental quantities except:

• Lenght

• Mass

• Time

• Acceleration

Since 1960 the system of units used by scientists and engineers is the “metric system”, which is officially known as SI units. What does SI stand for in French term?

• International System

• System International

• Simple International

• Systeme International

Convert the values to the indicated units  0.0056 km to mm

• 56,000

• 5,600

• 560

• 56

Identify how many significant figures are in this quantity 24,300 km?

• 3

• 4

• 5

• 3,4,5

What significant figure rule supports (24,300 km)?

• Zeroes at the end of a number that does not contain a decimal point may or may not be significant

• Zeroes at the end of a number that contains a decimal point are always significant

• Zeroes at the beginning of a number (used just to position the decimal point) are never significant

• Zeroes between nonzero digits are always significant.

Convert 57,000,000 in scientific notation:

• 5.7 x 10⁷  

• 5.7 x 10^-7  

• 5.7 x 10⁶  

• 5.7 x 10^-6

What is the base unit and symbol of Luminous intensity?

• Mole, mo

• Kelvin, K

• Candela, Cd

• Meter, m

Which of the following refers to how closely a measured value agrees with the correct value?

• Accuracy

• Precision

• Measurement

• Quantity

If you weigh a given substance five times, and get 3.2 kg each time, then your measurement is:

• Accurate

• Precise

• Undefined

• None of the Choices