资讯

In humans force is produced in part through tiny molecular motors that act upon the cytoskeleton. This project focuses on the human gene products of Myo9B and MYH9 which are both myosin motors that ...
Physics, particularly forces and motion, can be challenging. By observing everyday motion, conducting simple experiments, and understanding Newton's laws in plain language, the concepts become more ...
You're sitting in physics class, working on a traditional problem involving forces and acceleration, when you start to wonder where these terms even came from. Were they just dreamed up to bring ...
Why do things fall? It’s about force and motion. Find out more in this Science Trek short. A force is basically a push or a pull. Forces like gravity, inertia, and momentum affect everything.
But the Earth's gravitational pull on the moon is great. The Earth's gravity keeps the moon in Earth's orbit. For more information about force and motion, check out the science trek website.
These different safety features decrease the force of the collision on any people within the car. During a collision there is a change in momentum. The force of the collision is equal to the rate ...
Save guides, add subjects and pick up where you left off with your BBC account. Two forces can be added together to find a resultant force. In the diagram of a toy trailer below, when two children ...