Post FD Flashcard Review

Front

What is the only force acting on an object in free fall?

Back

The Earth.

Front

How many forces are acting on an object that is slowing down due to friction?

Back

3 (the push, friction, and gravity).

Front

True or False: An astronaut floating in space is in equilibrium.

Back

True.

Front

What does it mean if an object is in equilibrium?

Back

All of the forces are balanced.

Front

How many forces are acting on an astronaut floating in space?

Back

0.

Front

What is friction?

Back

A force that opposes the motion of an object.

Front

Define free fall.

Back

The motion of an object falling solely under the influence of gravity.

Front

What is the net force on an object in equilibrium?

Back

0 N.

Front

What happens to an object's motion if the net force is not zero?

Back

The object will accelerate in the direction of the net force.

Front

What is inertia?

Back

The tendency of an object to resist changes in its state of motion.