Force Test Review

Front

What are balanced forces?

Back

Balanced forces are forces that are equal in size but opposite in direction, resulting in no change in motion. The net force is zero.

Front

What are unbalanced forces?

Back

Unbalanced forces are forces that are not equal in size or direction, resulting in a change in motion. The net force is non-zero.

Front

What is the net force?

Back

The net force is the overall force acting on an object, calculated by combining all individual forces acting on it.

Front

What does Newton's 1st Law of Motion state?

Back

Newton's 1st Law of Motion states that an object at rest will stay at rest, and an object in motion will stay in motion at a constant velocity unless acted upon by a net external force.

Front

What does Newton's 2nd Law of Motion state?

Back

Newton's 2nd Law of Motion states that 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 does Newton's 3rd Law of Motion state?

Back

Newton's 3rd Law of Motion states that for every action, there is an equal and opposite reaction.

Front

What is an example of balanced forces in everyday life?

Back

An example of balanced forces is a book resting on a table; the force of gravity pulling it down is balanced by the normal force from the table pushing it up.

Front

What is an example of unbalanced forces in everyday life?

Back

An example of unbalanced forces is a soccer ball being kicked; the force of the kick is greater than the opposing forces, causing the ball to accelerate.

Front

How do balanced forces affect the motion of an object?

Back

Balanced forces do not change the motion of an object; it remains at rest or continues to move at a constant velocity.

Front

How do unbalanced forces affect the motion of an object?

Back

Unbalanced forces cause an object to accelerate, change direction, or change speed.