What do you use to measure length and mass?
The metric system uses units such as meter, liter, and gram to measure length, liquid volume, and mass, just as the U.S. customary system uses feet, quarts, and ounces to measure these.
What can we use for measuring mass?
Scientists measure mass with a balance, such as a triple beam balance or electronic balance. In science, the volume of a liquid might be measured with a graduated cylinder.
How do you measure mass per unit length?
How do you find mass per unit? Mass per unit length is the weight/Length of object. You take a wire and calculate its weight and length. Divide both of them and you get mass per unit length.
What instrument measures time?
Today, the usual measuring instruments for time are clocks and watches. For highly accurate measurement of time an atomic clock is used. Stop watches are also used to measure time in some sports.
How are mass and length measured in science?
Many observations made in science class use centimeters. Figure 2: Methods for measuring length. Mass is measured using a balance scale, which is often crucial while conducting chemical experiments, while weight is often measured on a spring-type scale. (Think of the scale in the bathroom or in the doctor’s office.)
How is the length of a pendulum determined?
A simple pendulum consists of a mass or pendulum bob tied to a string. The length of the pendulum is defined as the distance from the point of suspension of the string to the center of the pendulum bob. See Fig. 1.
Why was the measurement of length first standardized?
The measurement of length was one of the first measurements to be standardized, because the measurement of length varied between country to country and sometimes throughout periods of time. In ancient times, the measurement of length might be defined as the length of a king’s stride.
How is mass measured in the SI system?
In SI system we use kilogram to measure mass. But large quantities of matter like the mass of a mountain or the Earth or stars or the entire Universe is measured indirectly by using Newton’s Law of gravitation or other such equations. The law says that two bodies of mass M 1 and M 2 (say) attract each other with a Force F given by