Forces practice test questions

Front

What is equilibrium in the context of forces?

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

What factors affect the amount of frictional force present?

Back

The amount of frictional force is dependent on the normal force and the types of surfaces in contact.

Front

What is the advantage of pulling up on an object while pushing it?

Back

Pulling up decreases the normal force acting on the object, which reduces friction and makes it easier to move.

Front

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

Back

The greater the mass, the greater the force needed to cause an acceleration, according to Newton's second law.

Front

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

Back

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

Front

Define normal force.

Back

Normal force is the force exerted by a surface to support the weight of an object resting on it, acting perpendicular to the surface.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion; it is directly related to the mass of the object.

Front

Explain the concept of net force.

Back

Net force is the vector sum of all the forces acting on an object, determining the object's acceleration.

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, affecting how easily they slide past each other.

Front

How does the angle of a ramp affect the parallel weight of an object on it?

Back

As the angle of a ramp increases, the parallel weight (the component of gravitational force acting down the ramp) increases, making it harder to push the object up.