# Measurement and Units

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Measurement and Units### 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?
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- 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?
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- 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?
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- What type of measuring device would u use to measure the girth of a tree?
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- 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?
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- 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?
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- What units can measure pressure?
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- 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?
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- 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?
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- 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?
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- Show that units of #1/sqrt(epsilon_o*mu_o)#= #ms^(-1)# ?
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- 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?