Forces and Motion

Front

What does a motion graph that is flat (horizontal line) represent?

Back

The object is at rest.

Front

What is the Normal force acting on an object at rest on a flat surface?

Back

The Normal force is equal to the weight of the object.

Front

What type of forces are present in a tug of war game?

Back

Unbalanced forces.

Front

How do you calculate NET FORCE when multiple forces are acting on an object?

Back

NET FORCE is the vector sum of all individual forces acting on the object.

Front

What is Newton's 1st Law of Motion?

Back

An object at rest stays at rest and an object in motion stays in motion unless acted upon by an unbalanced force.

Front

What is Newton's 2nd Law of Motion?

Back

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F=ma).

Front

What is Newton's 3rd Law of Motion?

Back

For every action, there is an equal and opposite reaction.

Front

What is the definition of force?

Back

A push or pull on an object that can cause it to accelerate.

Front

What is the unit of force in the International System of Units (SI)?

Back

Newton (N).

Front

What is the difference between balanced and unbalanced forces?

Back

Balanced forces do not change the motion of an object, while unbalanced forces cause a change in motion.