POB Motion and Forces

Front

What do unbalanced forces mean for an object's motion?

Back

An object's motion WILL change.

Front

Which of Newton's Laws is related to force pairs?

Back

Newton's 3rd Law.

Front

What is Newton's 1st Law also known as?

Back

The law of inertia.

Front

Which Newton's Law explains why a tennis ball bounces back when thrown at a wall?

Back

Newton's 3rd Law.

Front

In a tug-o-war, if both players pull with 20 N of force, what is the net force?

Back

The net force is 0 N and the forces are balanced.

Front

What is the definition of force?

Back

A push or pull on an object.

Front

What is inertia?

Back

The tendency of an object to resist changes in its state of motion.

Front

What does Newton's 2nd Law state?

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 the formula for calculating force?

Back

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

Front

What happens to an object at rest when balanced forces act on it?

Back

It remains at rest.