Free Body Diagrams

Front

What is a Free Body Diagram (FBD)?

Back

A graphical representation used to visualize the forces acting on an object.

Front

What does the Normal force represent in a Free Body Diagram?

Back

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

Front

How do you calculate weight (W) in relation to mass (m) and gravitational acceleration (g)?

Back

W = mg, where g is approximately 9.8 m/s² on Earth.

Front

If an object has a weight of 980 N, what is its mass?

Back

100 kg, calculated using the formula m = W/g.

Front

What is net force?

Back

The vector sum of all forces acting on an object.

Front

How do you determine the direction of net force in a Free Body Diagram?

Back

By adding up all the forces acting in each direction and determining the resultant direction.

Front

What is the significance of a net force of zero?

Back

It indicates that the object is in equilibrium, meaning it is either at rest or moving with constant velocity.

Front

What happens to an object in free fall?

Back

The only force acting on it is gravity, resulting in a net force equal to its weight.

Front

If an apple weighs 1 N, what is the net force on it during free fall?

Back

1 N, as it is the only force acting on the apple.

Front

What does it mean if a Free Body Diagram shows multiple forces acting on an object?

Back

It indicates that the object is experiencing multiple influences, which must be analyzed to determine the net force.