Forces practice test questions

Front

What is equilibrium in physics?

Back

Equilibrium occurs when all the forces acting on an object are equal and opposite, resulting in no net force and no change in motion.

Front

Why does a full shopping cart require more force to push than an empty one?

Back

A full shopping cart has more mass, which means it requires more force to change its motion due to inertia.

Front

What does a free body diagram represent?

Back

A free body diagram illustrates all the forces acting on an object, helping to analyze the object's motion.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion; more massive objects have greater inertia.

Front

What is the relationship between mass and force needed to cause acceleration?

Back

The greater the mass of an object, the greater the force needed to cause an acceleration.

Front

What happens to an object when unbalanced forces act on it?

Back

The object will accelerate in the direction of the larger force.

Front

What is the coefficient of friction?

Back

The coefficient of friction is a numerical value that represents the frictional force between two surfaces in contact.

Front

How does the angle of a ramp affect the forces acting on an object?

Back

As the angle of a ramp increases, the parallel weight component increases, affecting the object's acceleration down the ramp.

Front

What is static friction?

Back

Static friction is the force that keeps an object at rest and prevents it from starting to move.

Front

What is the difference between static and kinetic friction?

Back

Static friction acts on objects at rest, while kinetic friction acts on objects in motion.