Forces and Newton's Laws

Front

What does the acceleration of an object depend on?

Back

The acceleration of an object depends on its mass as well as the force exerted on it.

Front

What is Newton's First Law of Motion?

Back

An object in motion will stay in motion and an object at rest will stay at rest unless acted upon by an outside force.

Front

What is the unit for momentum?

Back

The unit for momentum is kg*m/s.

Front

What type of forces are present in a game of tug of war?

Back

The forces in a game of tug of war are unbalanced forces.

Front

Which has more momentum: a car stopped at a red light or a bike moving at 15 mph?

Back

The bike moving at 15 mph has more momentum.

Front

What is the formula for calculating force?

Back

Force = mass x acceleration (F = m*a).

Front

What is inertia?

Back

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

Front

What is the difference between balanced and unbalanced forces?

Back

Balanced forces do not change the motion of an object, while unbalanced forces cause a change in motion.

Front

What is the second law of motion?

Back

The second law of motion states that 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 third law of motion?

Back

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