Monday Flashcard - AP Physics - December 16

Front

What are equivalent vectors?

Back

Vectors that have the same magnitude and direction.

Front

What is a scalar quantity?

Back

A quantity that has only magnitude and no direction, such as speed.

Front

How do you calculate the speed of an object sliding down a frictionless incline?

Back

Use conservation of energy: potential energy at the top equals kinetic energy at the bottom.

Front

What does a Free Body Diagram (FBD) represent?

Back

It shows all the forces acting on an object.

Front

What is centripetal force?

Back

The force required to keep an object moving in a circular path, directed towards the center of the circle.

Front

What is the formula for centripetal force?

Back

F_c = (mv^2)/r, where m is mass, v is velocity, and r is radius.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity (magnitude only), while velocity is a vector quantity (magnitude and direction).

Front

What is the principle of conservation of energy?

Back

Energy cannot be created or destroyed, only transformed from one form to another.

Front

What is the role of friction in motion?

Back

Friction opposes the motion of objects and can affect acceleration.

Front

How do you determine the net force acting on an object?

Back

Sum all the forces acting on the object, taking direction into account.