Forces at Play

Forces at Play Forces at Play Do you like to play sports? Sports are fun. They are also work. In science, work is anything that needs force. A force is a push or a pull. It makes something move. A pitcher uses force to throw the ball. He pushes the ball with his hand. The ball moves. Force helps you hit a baseball. The batter pushes the ball with her bat. The ball moves. Forces stop things from moving, too. This player pulls the ball from the air. The ball stops

登录后可以听外教原声朗读。

Forces at Play



Forces at Play

Do you like to play sports?

Sports are fun. They are also work.

In science, work is anything that needs force.

A force is a push or a pull.

It makes something move.

......
未登录用户只显示文件一半,登录后可以查看全文,并且可以听外教原声朗读。