Amplify Force and Motion, Chapters 1 and 2

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

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 Newton's 3rd Law of Motion?

Back

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

Front

What does it mean for a force to be applied in the opposite direction of velocity?

Back

It means that the force will slow down the object.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

How does mass affect acceleration?

Back

The greater the mass of an object, the less acceleration it will have for a given force.

Front

What is the relationship between force, mass, and acceleration?

Back

Force equals mass times acceleration (F=ma).

Front

What happens when two objects collide?

Back

The forces they exert on each other are equal in magnitude and opposite in direction, according to Newton's 3rd Law.

Front

What is an example of Newton's 1st Law in everyday life?

Back

A book resting on a table will remain at rest until someone pushes it.

Front

What is an example of Newton's 2nd Law in action?

Back

A soccer ball will accelerate more when kicked harder (greater force) than when kicked lightly.