Forces and Motion Review

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 the relationship between force, mass, and acceleration?

Back

According to Newton's second law of motion, the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. This is expressed as F = ma.

Front

What is an unbalanced force?

Back

An unbalanced force is a force that causes an object to change its state of motion. It results in acceleration or deceleration of the object.

Front

What is a balanced force?

Back

Balanced forces are equal in size and opposite in direction, resulting in no change in motion. The object remains at rest or continues to move at a constant speed.

Front

How does mass affect acceleration?

Back

With the same amount of force applied, an object with greater mass will have less acceleration compared to an object with less mass.

Front

What is the definition of speed?

Back

Speed is the distance traveled per unit of time. It is a scalar quantity and does not include direction.

Front

What is the definition of velocity?

Back

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

Front

What is gravitational force?

Back

Gravitational force is the attractive force between two masses. It pulls objects toward each other, such as the Earth pulling objects toward its center.

Front

What is the effect of friction on motion?

Back

Friction is a force that opposes the motion of an object. It can slow down or stop moving objects.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object. It can be caused by an increase or decrease in speed or a change in direction.