AP Physics 1 Unit 2 Dynamics Review

Front

What is frictional force?

Back

Frictional force is the force that opposes the relative motion of two surfaces in contact. It depends on the nature of the surfaces and the normal force acting between them.

Front

What is the normal force (Fn)?

Back

The 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 does it mean for forces to be balanced?

Back

Forces are balanced when the net force acting on an object is zero, resulting in no acceleration.

Front

What is the coefficient of friction?

Back

The coefficient of friction is a dimensionless scalar value that represents the frictional force between two bodies in contact, divided by the normal force acting between them.

Front

How does mass affect the velocity of colliding objects?

Back

In a collision, the object with less mass will generally move away with a higher velocity if no external forces act on the system, due to conservation of momentum.

Front

What is a free body diagram (FBD)?

Back

A free body diagram is a graphical representation used to visualize the forces acting on an object, helping to analyze the object's motion.

Front

What is the relationship between net force and acceleration?

Back

According to Newton's second law, the net force acting on an object is equal to the mass of the object multiplied by its acceleration (F = ma).

Front

What is static friction?

Back

Static friction is the frictional force that prevents two surfaces from sliding past each other when a force is applied.

Front

What is kinetic friction?

Back

Kinetic friction is the frictional force that opposes the motion of two surfaces sliding past each other.

Front

What factors affect the magnitude of frictional force?

Back

The magnitude of frictional force depends on the nature of the surfaces in contact and the normal force acting between them.