百度试题 结果1 题目Which word meansthe naturalforce that pulls objects towardeach othe? A. training B. nozzle C. gravity D. cosmonaut 相关知识点: 试题来源: 解析 C 反馈 收藏
(15分)Gravity(万有引力) is a force that pulls things toward each other.Although you cannot see it, the force of gravity is everywhere. Earth's gravity pulls in one direction-down. A better way of saying that is,gravity pulls(拉) you and everything on Earth towards Earth's center....
A force that pulls objects toward each other The combination of all forces acting on an object The amount of matter in an object A unit of measurement for force The force of gravity on an object at the surface of a planet N The combination of all forces acting on an object N The ...
The Earth has a force that pulls things toward itself. We call this force gravity (引力) . This is something we love with all the time, and hardly ever think about it. But it is a most important factor (因素) in rocket (火箭) operation and must be overcome if we are to get anywhe...
The Earth has a force that pulls things toward itself. We call this force gravity(地心引力). This is something we live with all the time, and we take it for granted and hardly ever think about it. But it is a most important factor in rocket operation and must be overcome if we are...
13The earth has a force that pulls things toward itself. We call this force gravity. This is somethingwe live with all the time and we take1 for granted and hardly ever think about it. But it is 2most important factor in rocket operation and must be overcome if we are _3 (get) any...
Friction that occurs as an object moves through a fluid. Gas or liquid. Mass The amount of matter in an object. Weight The force of gravity on an object at the surface of a planet. Gravity The force that pulls objects toward each other. Free fall The motion of a falling object when ...
阅读理解: The Earth has a force that pulls things toward itself. We call this force gravity (引力) . This is something we love with all the time and hardly ever think about it. But it is a most important factor (
A force that pulls objects toward each other Universal Gravity Gravity acts between all objects in the universe Mass the amount of matter in an object Weight A measure of the force of gravity on an object Air resistance Fluid friction acting on an object moving through the air ...
阅读理解: The Earth has a force that pulls things toward itself. We call this force gravity. This is something we love with all the time, and hardly ever think about it. But it is a most important factorin rocketoperation and must be overcome if we are