Directions: Read the sentences carefully and fill in the blank with the correct answer.
Choose the word from the box
-Downward
-Gravity
-non-contact Gravitational force
-Equal Sir Isaac Newton
-mass and distance
-smaller force
1.
is a force between two objects in the universe.
2. Scientist who discovered the principle of gravity is
3. Gravity is a
that acts between two objects even if they are far from each other.
The gravitational force also depends on
of the objects.
5. All objects thrown upward will eventually goes
6. The
of the sun keeps the planets stay in orbit.
7. The weight of an object is
to the gravitational force.
8.
When you go to the moon, the gravitational pull is weaker because the moon is
than the Earth.
Choose the word from the box
-Downward
-Gravity
-non-contact Gravitational force
-Equal Sir Isaac Newton
-mass and distance
-smaller force
1.
is a force between two objects in the universe.
2. Scientist who discovered the principle of gravity is
3. Gravity is a
that acts between two objects even if they are far from each other.
The gravitational force also depends on
of the objects.
5. All objects thrown upward will eventually goes
6. The
of the sun keeps the planets stay in orbit.
7. The weight of an object is
to the gravitational force.
8.
When you go to the moon, the gravitational pull is weaker because the moon is
than the Earth.
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Answer:
1. Every object in the universe — stars, planets, moons, even you—has gravity. Gravity is a force of attraction between all objects.
2. Sir Isaac Newton was an English mathematician and mathematician and physicist who lived from 1642-1727. The legend is that Newton discovered Gravity when he saw a falling apple while thinking about the forces of nature.
3.Gravitational force -an attractive force that exists between all objects with mass; an object with mass attracts another object with mass; the magnitude of the force is directly proportional to the masses of the two objects and inversely proportional to the square of the distance between the two objects.
4.The size of the gravitational force depends on the mass of the objects involved. The greater the mass, the greater the gravitational force. Furthermore, if the gravitational force is to be detectable on a human scale, then one of the objects must be as massive as a planet.
5.When you throw an object upwards, it will eventually fall back to the ground under the earth's gravity. ... An object that is thrown vertically upwards decelerates under the earth's gravity. Its speed decreases until it attains a maximum height, where the velocity is zero.
6.The sun's gravity pulls the planet toward the sun, which changes the straight line of direction into a curve. This keeps the planet moving in an orbit around the sun. Because of the sun's gravitational pull, all the planets in our solar system orbit around it.
7. The weight W, or gravitational force, is then just the mass of an object times the gravitational acceleration. Since the gravitational constant (g) depends on the square of the distance from the center of the earth, the weight of an object decreases with altitude.
8. The Moon's surface gravity is weaker because it is far less massive than Earth. A body's surface gravity is proportional to its mass, but inversely proportional to the square of its radius.
Explanation:
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