Forces: The Science of Movement

Front

What is the normal force?

Back

The normal force is the force exerted by a surface that supports the weight of an object resting on it, acting perpendicular to the surface.

Front

True or False: The normal force can act in any direction as long as it is perpendicular to the surface.

Back

True

Front

What is applied force?

Back

A pull or push exerted on an object.

Front

What is the role of frictional force in motion?

Back

Frictional force always opposes the relative motion between two surfaces in contact.

Front

What happens to the forces acting on an object when it is moving at a constant speed?

Back

The forces are balanced, meaning there is no net force acting on the object.

Front

Define balanced forces.

Back

Balanced forces are two or more forces acting on an object that cancel each other out, resulting in no change in motion.

Front

What is unbalanced force?

Back

An unbalanced force occurs when the total force acting on an object is not zero, causing the object to accelerate.

Front

Explain the concept of inertia.

Back

Inertia is the tendency of an object to resist changes in its state of motion, whether at rest or moving.

Front

What is gravitational force?

Back

Gravitational force is the attractive force between two masses, such as the Earth and an object.

Front

How does friction affect motion?

Back

Friction opposes motion, making it harder for objects to slide past each other.