CFA Review 6.7B, 8.7A 8.7.B Newton's Three Laws of Motion

Front

What does 'For every action, there is an equal and opposite reaction' represent?

Back

Newton's 3rd law of motion.

Front

What is the tendency of an object to resist a change in motion?

Back

Inertia.

Front

Objects with greater _________ also have greater inertia.

Back

Mass.

Front

How does friction affect speed?

Back

More friction decreases speed.

Front

What does an unbalanced force mean for an object?

Back

The object is changing its motion.

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 unless acted upon by a net external force.

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 (F=ma).

Front

What is the definition of mass?

Back

Mass is a measure of the amount of matter in an object.

Front

What is the definition of force?

Back

A force is a push or pull on an object that can cause it to change its motion.

Front

What is the relationship between mass and inertia?

Back

Inertia is directly related to mass; greater mass means greater inertia.