Physics Review

Front

What is an unbalanced force?

Back

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

Front

What is the direction of the force of friction when pushing an object?

Back

The force of friction acts in the opposite direction of the applied force.

Front

What does it mean for an object to be in motion with increasing speed?

Back

It means that the object's velocity is changing and it is accelerating in a specific direction.

Front

What does a net force diagram represent?

Back

A net force diagram shows all the forces acting on an object and their resultant effect on the object's motion.

Front

What is momentum?

Back

Momentum is the product of an object's mass and its velocity, and it is a vector quantity that has both magnitude and direction.

Front

How does inertia relate to an object at rest?

Back

Inertia is the property of an object to resist changes in its state of motion. An object at rest will stay at rest due to its inertia until acted upon by an unbalanced force.

Front

What is the relationship between force, mass, and acceleration?

Back

According to Newton's second law, force equals mass times acceleration (F = ma). This means that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.

Front

What is the difference between balanced and unbalanced forces?

Back

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

Front

What is the effect of friction on motion?

Back

Friction opposes the motion of an object, causing it to slow down or stop.

Front

What is constant speed?

Back

Constant speed means that an object covers equal distances in equal intervals of time, without changing its speed.