Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. The more mass an object has, the more inertia it has.

Front

Which object has more inertia: a bowling ball or a tennis ball?

Back

A bowling ball has more inertia because it has more mass.

Front

What is Newton's First 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

What is Newton's Second 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).

Tags

NGSS.MS-PS2-2

Front

What is Newton's Third Law of Motion?

Back

For every action, there is an equal and opposite reaction.

Tags

NGSS.MS-PS2-1

Front

What are action and reaction forces?

Back

Action and reaction forces are pairs of forces that are equal in size but opposite in direction, acting on different objects.

Tags

NGSS.MS-PS2-1

Front

Why are action and reaction forces not balanced forces?

Back

Because they act on different objects, they do not cancel each other out.

Front

What is the formula for calculating force?

Back

Force = mass x acceleration (F = ma).

Tags

NGSS.MS-PS2-2

Front

Which has more inertia: a truck or an ant?

Back

A truck has more inertia because it has a greater mass.

Front

What does it mean when we say an object has a lot of inertia?

Back

It means that the object requires a large amount of force to change its motion.