__________ is the sum of all forces acting on an object. It is capable of accelerating a mass. 

A unbalanced force means that an object is 

The girls in this picture represent ________ forces. 

If I kick a soccer ball across the field, what vocabulary word tells me why the ball would slow down in the grass?

In which section is the car undergoing positive acceleration?

In which section does the car have zero acceleration?

The slope of a Velocity - Time Graph gives the ______ of the object.

Check all that apply to the graph.

According to Newton's second law of motion, ____.

For any object, the greater the force that's applied to it, the greater its ____ will be.

A material through which electrons do NOT easily flow is a(n) ____. 

What is the primary gas responsible for the greenhouse effect on Earth?

Which of the following is a renewable source of energy?

In a chemical reaction, the substances that are present at the start of the reaction are called ____.