Measurement and Units

Topic Page

Questions

• Why do scientists prefer the SI units over the old English system of measurement?
• What is the SI unit force weight work and energy?
• What is the smallest metric measurement?
• What SI unit is energy measured in?
• Why is measurement accuracy important?
• Why are measurements approximations?
• What is the SI derived unit of electric charge?
• Are si units the same as metric units?
• Why are standardized units of measurement important?
• What units of measurement are used to describe wavelengths?
• What are metric units?
• What are some common mistakes students make with units of measurement?
• What are units of measurement?
• How does a conversion factor differ from a measurement?
• How does a vector measurement differ from a scalar measurement?
• How does accuracy differ from precision in scientific measurements?
• How does an astronomical unit differ from a light year?
• How does taking the natural log (ln) change units?
• How does multiplying several measurements affect precision?
• Question #781db
• Question #fd152
• What is the meaning of significance level? And what should it be?
• How to convert between measurement units?
• Why are measurements and units are important in a scientific investigation?
• Question #e1dea
• Question #e6807
• What combination of units is equivalent to the volt?
• What combination of units is equivalent to the ampere?
• What is mu in physics?
• What is the relationship between velocity and distance?
• Question #da3b1
• Question #ace79
• Question #627e5
• Question #302c8
• Question #87d88
• Question #a4647
• What type of measuring device would u use to measure the girth of a tree?
• Question #95c33
• Question #aaad2
• Question #25f42
• Question #9c493
• Question #e7761
• Maya measures the radius and the height of a cone with 1% and 2% errors, respectively. She use these data to calculate the volume of the cone. What can Maya say about her percentage error in her volume calculation of the cone?
• Question #0098e
• Question #daf7a
• Question #a2a8c
• Question #d9c2b
• Question #b4b19
• Question #cb4c0
• What are the units used to measure different types of mass in the metric system?
• If the velocity of light c, gravitational constant G and Planck's constant h are chosen h as fundamental units, what are the dimensions of mass, length and time in the new system?
• Question #b47e0
• Question #1d1d2
• What units can measure pressure?
• Question #01b24
• What can be used to accurately measure 25.0cm?
• There are two cups filled with equal amount of tea and coffee. A spoonful of coffee is first transferred from coffee-cup to the tea-cup and then a spoonful from the tea-cup is transferred to the coffee-cup, then?
• Question #ee209
• Question #716c8
• How does the number of digits change as the number is progressively converted from binary to octal to decimal to hexadecimal system?
• What's the difference between octal numbers and decimal numbers?
• What is 95 pounds in newtons?
• Question #a6169
• Question #05a68
• Question #2e3fc
• Question #f25e6
• Question #4541b
• Question #7853f
• What are some measurement units that would be useful in describing a basketball court, the length of a river, and the length of a grasshopper?
• Question #da813
• Question #c056d
• Question #f435d
• Question #e5ba8
• Question #39c26
• Question #cb7bf
• Show that units of #1/sqrt(epsilon_o*mu_o)#= #ms^(-1)# ?
• Question #7de72
• Question #c190a
• Question #14cfe
• What will be the volume of a copper nugget, if its weight is equal to that of a piece of lead having volume #2.62cm^3#?
• Please help me?
• A screw gauge gives the following reading when used to measure the diameter of a wire. Main scale reading=6mm. Circular scale reading=64 divisions. Given that 1 mm on main scale corresponds to 100 divisions of circular scale.What is the diameter of wire?