97 Things Move-Low

THINGS MOVE Written by Rhonda Lucas Donald

朗达·卢卡斯·唐纳德著

All around you, things move. Things roll, bounce, and fly. Kids run and jump.

在你周围，事物在移动。 东西会滚动、弹跳和飞行。 孩子们又跑又跳。

What makes things move? Let's find out.

是什么让物体运动?让我们一探究竟。

Things stay at rest until a force moves them. A push is a force. A pull is a force, too.

物体静止不动，直到有力量推动它们。 推力是一种力。拉力也是一种力。

A little force can move things that are light. Empty swings are easy to push.

一点力就能移动轻的东西。 空秋千很容易被推。

It takes more force to move heavy things. A swing with a person on it is harder to push.

移动重的东西需要更大的力。 有人在秋千上的秋千更难推。