Force & Motion Vocab

Front

What are balanced forces?

Back

Equal forces acting on an object in opposite directions, resulting in no change in motion.

Front

What is fluid friction?

Back

Friction that occurs as an object moves through a liquid.

Front

What is velocity?

Back

Speed in a given direction.

Front

What does Newton's 3rd Law of Motion state?

Back

If one object exerts a force on another object, the second object exerts a force of equal strength in the opposite direction.

Front

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

Back

Acceleration depends on the object's mass and the net force acting on the object.

Front

What is unbalanced forces?

Back

Forces that are not equal and opposite, resulting in a change in motion.

Front

What is momentum?

Back

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

Front

What is gravity?

Back

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

Front

What is acceleration?

Back

The rate of change of velocity of an object.

Front

What is the formula for calculating force?

Back

Force = mass × acceleration (F = ma).