Дистанційне навчання 21/01/2021 Pace Work ( Social Studies) 6-D

 Theme: Measurement

Reading

Measuring Work

Measurement is finding a number that shows the size or amount of something.

Work is the amount of energy necessary to move an object. A person can push against a brick wall until they sweat. But unless they moved the wall — even a tiny bit — they did no work. But at the same time, if you scoot the computer mouse even a part of an inch, you have done work. Work in the scientific sense. Don't try to convince your parents or your teachers that you have done a lot of work by playing video games.

Work can be measured. It is measured by the amount of distance that a force moves an object. Sir Isaac Newton was a very famous scientist who had a wonderful understanding of the relationship between force and motion. For this reason, the measurement is known as a Newton. It is abbreviated with a capital N. The term joule is often used to measure work as Newtons per meter. If it takes 1 Newton to move any object 1 meter, then that is equivalent to a joule

There are special tools for measuring the force necessary to move an object. These are known as force meters. They use a spring and a hook to determine how much pull is required to slide an object up an inclined plane. Really very simple to use.

A number that shows the size or amount of something.

 Usually the number is in reference to some standard measurement, such as a meter or kilogram.

 Here some scales are used to measure weight.

There are two main measurement standards: Metric and US.

Would you use ounces or pounds to describe the mass of a paperback book?

A: ounces

B: pounds

C: neither

Would you use kilograms or grams to describe the mass of 10 paper clips?

A: grams

B: kilograms

C: neither

How many pints are in a gallon?

A: 2

B: 4

C: 8

D: 16

What unit of measurement would you use to describe the amount of water in a pool?

A: cups

B: pints

C: gallons

D: quarts

Which of the following measurements would you use to describe the length of a house?

A: inch

B: foot

C: yard

D: mile

A binder is about 11 _______ long.

A: inches

B: feet

C: yards

D: miles

If you convert 16 yards to feet, what are you left with?

A: 5.33 feet

B: 32 feet

C: 48 feet

D: 64 feet