Everyday Science Mcqs

The Renaissance scientist who explained how planets moved around the sun was

A. Kepler
B. Rebelais
C. Francis Bacorr
D. Gutenber

The Renaissance scientist who explained how planets moved around the sun was Kepler. Johannes Kepler was a German astrologer, astronomer and mathematician who played a significant role in the scientific revolution of the17th century.

The Proportion of Hydrogen to Helium in the Sun is________?

A. 3:2
B. 3:1
C. 1:1
D. 3:4

The sun is mostly composed of the elements hydrogen (H) and helium (He). By mass the composition of the sun is 75 percent hydrogen and 25 percent helium. Various metals make up less than 0.1 percent of the mass of the sun. The temperature of the sun’s surface is about 10,340 degrees Fahrenheit (5,726 degrees Celsius).

Jupiter, Saturn, Uranus and Neptune are called_________?

A. Jovian planets
B. Terrestrial Planets
C. Both A & B
D. None of these

The outer planets are called the jovian planets, meaning huge gas giant. These planets in order are Jupiter, Saturn, Uranus, and Neptune. Pluto comes after Neptune, but it is no longer considered a planet. The so called Jovian planets are named after Jupiter, the largest planet in the Solar System. They are also called the gas planets because they consist mainly of hydrogen, or the giant planets because of their size.

Mercury, Venus, Earth and Mars are called___________?

A. Dwarf Planet
B. Gaseous Planets
C. Terrestrial Planets
D. Both A & B

The planets Mercury, Venus, Earth, and Mars, are called terrestrial because they have a compact, rocky surface like Earth’s terra firma. The terrestrial planets are the four innermost planets in the solar system.

Which of the following cutting conditions greatly affects the tool wear?

A. Cutting speed
B. Feed
C. Depth of cut
D. None of the above

In which type of solar eclipse the Sun’s center is covered by the moon, leaving its edges uncovered?

A. Partial Solar Eclipse
B. Total Solar Eclipse
C. Annular Solar Eclipse
D. None of the above

Almost identical eclipses occur after 18 years and 11 days. This cycle is known as__________?

A. Partial Eclipse cycle
B. Total Eclipse Cycle
C. Saros Cycle
D. None of the above

Day and night are the results of__________?A. Earth rotation around its axis
B. Earth revolution
C. Earth rotation accompanied with its revolution.
D. None of these

We get day and night because the Earth ss (or rotates) on an imaginary line called its axis and different parts of the planet are facing towards the Sun or away from it. It takes 24 hours for the world to turn all the way around, and we call this a day.

 

Joint in which bones are joined together by fibrous tissues is called _____________ ?

A. Fibrous joint
B. Cartilaginous joint
C. Synovial joint
D. Ball and socket joint

Fibrous joints are connected by dense connective tissue consisting mainly of collagen. These joints are also called fixed or immovable joints because they do not move. Fibrous joints have no joint cavity and are connected via fibrous connective tissue. The skull bones are connected by fibrous joints called sutures.