Forces and Motion LC2 Review

Front

What is an unbalanced force?

Back

An unbalanced force is a force that causes an object to change its motion. It is not equal in size and opposite in direction to other forces acting on the object.

Front

What is a balanced force?

Back

A balanced force occurs when two forces acting on an object are equal in size and opposite in direction, resulting in no change in motion.

Front

What is net force?

Back

Net force is the total force acting on an object after all the individual forces are combined. It determines the object's acceleration.

Front

How does mass affect acceleration?

Back

The greater the mass of an object, the more force is needed to accelerate it. This is described by Newton's second law of motion.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object. It occurs when two surfaces come into contact.

Front

What happens when an unbalanced force acts on an object?

Back

When an unbalanced force acts on an object, it changes the object's motion, causing it to accelerate in the direction of the net force.

Front

What is gravitational force?

Back

Gravitational force is the attraction between two objects due to their mass. It pulls objects toward each other.

Front

What is the formula for calculating force?

Back

The formula for calculating force is F = m × a, where F is force, m is mass, and a is acceleration.

Front

What is acceleration?

Back

Acceleration is the rate at which an object changes its velocity. It 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 unbalanced force.