AP Physics Dynamics

Front

What is net force?

Back

Net force is the vector sum of all the forces acting on an object. It determines the object's acceleration according to Newton's second law.

Tags

NGSS.MS-PS2-2

Front

What happens to the net force when an object moves at a constant velocity?

Back

The net force is zero when an object moves at a constant velocity, as the forces acting on it are balanced.

Front

What does it mean when an elevator is accelerating upward?

Back

When an elevator is accelerating upward, the net force acting on it is directed upward, indicating that the upward force (tension) is greater than the downward force (weight).

Tags

NGSS.MS-PS2-2

Front

What is the role of normal force?

Back

Normal force is the support force exerted by a surface perpendicular to the object resting on it. It counteracts the weight of the object.

Front

How does lifting one foot affect the normal force on the other foot?

Back

Lifting one foot does not change the normal force acting on the other foot; it remains equal to the weight of the person.

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, showing all the forces and their directions.

Front

What does it indicate if the net force is positive?

Back

A positive net force indicates that the object is accelerating in the direction of the net force.

Tags

NGSS.MS-PS2-2

Front

What is the relationship between force, mass, and acceleration?

Back

According to Newton's second law, the relationship is given by the formula F = ma, where F is the net force, m is the mass, and a is the acceleration.

Tags

NGSS.MS-PS2-2

Front

What does it mean for an object to be in equilibrium?

Back

An object is in equilibrium when the net force acting on it is zero, resulting in no acceleration.

Front

What is the significance of the slope in a force vs. time graph?

Back

The slope of a force vs. time graph represents the rate of change of force, which can indicate acceleration or deceleration.

Tags

NGSS.MS-PS3-1