G5-T5-Spelling

力

A pull or push from one object to another

有弹性的

Something can be stretched and returned to its original form or size.

图表

A visualisation of data and information

弹簧测力计

A tool used to measure forces.

牛顿

A physicist who discovered the laws of motion and force. Also the name of a unit of force.

重力

The force that pulls things downwards on the earth.

滑动摩擦力

The force of two surfaces shifting against each other. .

滚动摩擦力

Resistance（阻碍） to rotation.

浮力

The force that lifts objects in a liquid or gas.

漂浮

When the object lies on or just below the surface of a liquid