Front

What is the relationship between mass and the force needed to move an object?

Back

More force is needed to move objects of larger mass.

Front

What must act on an object to change its motion?

Back

A force must act on an object to change its motion.

Front

What type of force is caused by objects rubbing together?

Back

Friction is the force caused by objects rubbing together.

Front

What principle explains why a rocket launches?

Back

A rocket launches because of an opposite reaction.

Front

What does Newton's Third Law state about action and reaction?

Back

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

Front

What is inertia in the context of Newton's First Law?

Back

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

Front

How does mass affect inertia?

Back

The greater the mass of an object, the greater its inertia.

Front

What is the formula for calculating force?

Back

Force = mass x acceleration (F = ma).

Front

What is the significance of the net force acting on an object?

Back

The net force determines the object's acceleration and direction of motion.

Front

What is the difference between balanced and unbalanced forces?

Back

Balanced forces do not change an object's motion, while unbalanced forces do.