# basic physics

*label*Science

*timer*Asked: Jan 20th, 2019

*account_balance_wallet*$20

### Question Description

It has 20 question and due in 8 hours simple answers it should not be tough ((see the attachment)) and it will be around physics.

## Tutor Answer

Attached you will find the outline and answers for your assignment. Please let me know if you need modifications or clarifications.

ANSWERS.

1. There are three main systems of measurement. The difference between them are the units that

are defined as standard for the physical magnitudes of length, mass, volume, temperature and

time. The SI units (International Systems of Units) uses meter for length, kilograms for mass,

kelvin for temperature, cubic meter for volume, and seconds for time. In the case of the metric

system, it shares some units with the SI units but differs in temperature (Celsius degree),

volume (liter), and mass (grams). There is another unit system that is commonly used in the

United States and other countries called British system. Some units that differs are in length

(inches) and mass (pounds).

2. A. To calculate the volume of a cube, we need to measure the length of one side (since a cube

have the same length in every side of the six faces). B. To calculate the volume of a cylinder,

we need to measure the height and the diameter of the base (the base of a cylinder is a circle).

3. Speed (velocity) is a derived unit that relates the units of length and time. To calculate speed,

we need to measure the distance covered (length) and time when that distance is covered.

4.

Beverages like soft drinks, water and juices are in presentations of 500mL and 2 liters. Some

detergents like laundry and liquid detergent are in presentation of 500mL. Also, some creams

and liquid anti-acids to treat indigestion like Gaviscon are also in the presentation of 500mL.

5. The flow rare is defined as the volume of liquid which passes through a section of interest per

unit of time; in this case, through my throat. The average flow rate is the division between the

volume that I drank and the time that I consumed in drinking: 1...

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