IPC Ch.3 Review

Front

What does the Law of Conservation of Momentum state?

Back

In a closed system, the total momentum before and after a collision remains constant; momentum is neither lost nor gained.

Front

What is net force?

Back

Net force is the vector sum of all the forces acting on an object, determining its acceleration.

Front

What is Newton's 1st Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion at a constant velocity unless acted upon by a net external force.

Front

Why do objects weigh less on the Moon than on Earth?

Back

Objects weigh less on the Moon because it has less mass and therefore less gravitational pull compared to Earth.

Front

What type of friction occurs when two surfaces slide against each other?

Back

Sliding Friction.

Front

What is the formula for calculating force?

Back

Force (F) = Mass (m) x Acceleration (a).

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Front

What is Newton's 2nd Law of Motion?

Back

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.

Front

What is an example of fluid friction?

Back

A swimmer moving through water experiences fluid friction.

Front

What is static friction?

Back

Static friction is the force that keeps an object at rest and prevents it from starting to move.