Force & Motion Vocab

Front

What are unbalanced forces?

Back

Forces that produce a nonzero net force, causing a change in an object's motion.

Front

What is acceleration?

Back

The rate at which velocity changes over time.

Front

What is rolling friction?

Back

Friction that occurs when an object rolls over a surface.

Front

What is fluid friction?

Back

Friction that occurs as an object moves through a liquid.

Front

What is friction?

Back

The force that one surface exerts on another when the two surfaces rub against each other.

Front

What is momentum?

Back

The quantity of motion an object has, dependent on its mass and velocity.

Front

What is gravity?

Back

The force that attracts two bodies towards each other, commonly experienced as the force that pulls objects towards the Earth.

Front

What is inertia?

Back

The tendency of an object to resist changes in its state of motion.

Front

What is the difference between balanced and unbalanced forces?

Back

Balanced forces do not change an object's motion, while unbalanced forces do.

Front

What is speed?

Back

The distance traveled per unit of time, regardless of direction.