What is the name of the force that pulls objects towards the Earth? A. Magnetic force B. Electric force C. Gravitational force D. Frictional force 相关知识点: 试题来源: 解析 C。解析:使物体向地球下落的力是重力。文章中有关于力的介绍。选项 A 磁力不是使物体向地球下落的力。选项 B 电力与...
A. Magnetism. B. Electricity. C. Gravity. D. Pressure. 相关知识点: 试题来源: 解析 C。解析:“He realized that there must be a force that pulls objects towards the center of the Earth. He called this force gravity.”,可知答案是 C。反馈 收藏 ...
What Pulls Us to EarthTayler, KathleenVisions International
Centripetal and centrifugal forces are two terms used to describe the physics of circular motion — but only one of them is real. The centripetal force keeps an object moving in a circle and is always pointed toward the center of that circle. For instance, the gravitational force of the sun...
The gravitational force tugging between two bodies depends on how massive each one is and how far apart the two lie, according toNASA Glenn Research Center. Even as the center of theEarthis pulling you toward it (keeping you firmly lodged on the ground), your center of mass is pulling bac...
百度试题 结果1 题目___22. The force of ___ is what pulls us back to Earth when we jump.(A) gravity (B) noise (C) wave (D) collision 相关知识点: 试题来源: 解析 A 反馈 收藏
23K In physics, gravity refers to the force that pulls anything with mass towards the Earth. Use this physics lab to explore acceleration and its relationship with gravity. Follow the physics lab steps, and do a data analysis to understand how gravity affects acceleration. Related...
Rain falls from clouds for the same reason anything falls to Earth.The Earth's gravity pulls it.But every cloud is made of water droplets or ice crystal(冰晶).Why doesn't rain or snow fall constantly from all clouds?The droplets or ice crystals in clouds are extremely small.The effect ...
According to BBC News, there are more than 22,000 pieces of space junk floating around the Earth. And these are just the things that we can see from the surface of the Earth by telescopes (望远镜). There are also millions of smaller pieces of junk that we can't see. Objects, like...
On the other hand, gravity is a universal force that acts between all objects with mass, pulling them toward one another and influencing the motion and position of objects across the universe. 10 Inertia is solely dependent on an object's mass—the greater the mass, the greater the inertia....