Force and Motion

Front

What is force?

Back

A force is a push or pull that can cause an object to move, change its speed, or change its direction.

Front

What is motion?

Back

Motion is the change in position of an object over time.

Front

What is gravitational attraction?

Back

Gravitational attraction is the force that pulls two objects toward each other, which decreases as the distance between them increases.

Front

What are unbalanced forces?

Back

Unbalanced forces are forces that cause an object to accelerate or change its motion because they are not equal in size and opposite in direction.

Front

What are balanced forces?

Back

Balanced forces are equal in size and opposite in direction, resulting in no change in motion.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object when it is in contact with another surface.

Front

What is acceleration?

Back

Acceleration is the rate at which an object changes its velocity, which can be an increase or decrease in speed.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion; an object at rest stays at rest, and an object in motion stays in motion unless acted upon by an external force.

Front

What is velocity?

Back

Velocity is the speed of an object in a specific direction.

Front

What is the relationship between force and motion?

Back

A force applied to an object can cause it to start moving, stop moving, or change direction.