Answer
the following questions in English using any resource including the material
provided if necessary by filling in the brackets.
1.
Newton’s first law of motion: Unless there is some force
working on it, a moving object will keep moving and a still object will stay
still. This is called the Law of ( ).
2.
Newton’s second law of motion: An object attracted by gravity will move increasingly
faster as time proceeds. The rate of change of velocity is called ( ). It will be directly ( ) to the acting force and ( ) to the mass of the body.
3.
Newton’s third law of motion: If you push something, you will be pushed
back exactly to the opposite direction and with the equal power with which you
push it. These opposite and equal forces are action and ( ).
4.
( ) is the
word for the speed of a thing in a certain direction?
5.
It takes the earth about 24 hours to ( ) once on
its axis.
6.
The apparent year-round changes of the positions of constellations
happen because the earth (
) around the sun once every twelve months.
7.
( ) , or ( ) is the star in the north
sky which is on the extended line of the rotation axis of the earth?
8.
There are 8 ( ) in the
solar system.
9.
The earth is the (
) planet in the order of the proximity to the sun.
10.
( ) is the next to
the earth but far from the sun and its much colder than the earth while s( ) is also nest to the
earth but closer to the sun and its much hotter than the earth. Neither have
life on them.
11.
Mercury, Venus, Earth and Mars are ( ) planets. All the
other planets outside of Mars are ( ) planets.
12.
Pluto is not considered as a planet. It is classified as a ( ) because it has not
cleared its orbit, meaning it has a lot of rocks scattered in its way around
the sun. In other words, Pluto is one of the rocks that make a huge belt surrounding
the solar system.
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