Measurements and Calculations SRM 1

What is the unit of measurement for length in the metric system?

• gallon

• pound

• meter

• inch

What is the unit of measurement for mass in the metric system?

• kilogram

• pound

• inch

• liter

What is the unit of measurement for time in the metric system?

• seconds

• liters

• meters

• kilograms

What is the definition of physical quantity?

• A physical quantity is a type of food

• A physical quantity is a type of animal

• A physical quantity is a physical property that can be measured and described using a numerical value and a unit.

• A physical quantity is a type of exercise

Give an example of a physical quantity.

• Length

• Color

• Temperature

• Love

Explain the difference between base quantity and derived quantity.

• Base quantity is smaller than derived quantity

• Base quantity is measured in kilograms, while derived quantity is measured in meters

• Base quantity is a vector quantity, while derived quantity is a scalar quantity

• Base quantity is independent of other quantities, while derived quantity is defined in terms of base quantities.

What is scientific notation and how is it used in physics?

• D

• C

• A

• B

Express 0.0000256 in scientific notation.

• 2.56 x 10^(-5)

• 2.56 x 10^(-4)

• 2.56 x 10^(-6)

• 2.56 x 10^(-3)

Express 6,300,000 in scientific notation.

• 6.3 x 10^6

• 6.3 x 10^5

• 6.3 x 10^7

• 6.3 x 10^4

What is the prefix for 1,000 in the metric system?

• mega

• centi

• deca

• kilo