Sci 6 Q3 Living with Gravity and Friction

While you are seated, your chair is exerting an upward force on you, just enough to support your weight. What is this support force called?

(a)  

It is a force acting on you when you are swimming.

(a)  

It is a force that enables us to jump.

(a)  

It is a force that makes the use of inflatable pods possible.

(a)  

To keep the plane from falling, there has to be an upward force on it to cancel out Earth's downward pull. What is this upward force called?

(a)  

In lifting objects, (a)   force is needed.

To start moving an object up, a (a)   force greater than the object's weight is needed.

The airplane's engines are designed to give a forward push, also called the (a)   .

It refers to the special shaping of cars and trains to reduce friction with air, and ships and boats with water.

(a)  

Swimmers wear head caps, bikers wear streamlined helmets, and sprinters wear skin-tight jerseys and shorts. All these things make them more (a)   .