Newton's Laws of Motion

Front

Forces that are equal in size but in opposite directions are called ______________ forces.

Back

Balanced forces are forces that are equal in size but opposite in direction, resulting in no change in motion.

Front

A person not paying attention while skateboarding hits a rock. The skateboard stops...they don't. This illustrates which law?

Back

This illustrates the Law of Inertia, which states that an object at rest stays at rest and an object in motion stays in motion unless acted upon by a net external force.

Front

What formula is used to calculate force?

Back

Force = Mass x Acceleration. This formula shows that the force acting on an object is equal to the mass of the object multiplied by its acceleration.

Front

If a person bought coffee and put it on the seat next to them, and it spilled when they stopped quickly, which law does this represent?

Back

This represents Newton's 1st Law, which states that an object in motion will stay in motion unless acted upon by an external force.

Front

A magician pulls a tablecloth out from under dishes and glasses on a table without disturbing them. Which law is demonstrated?

Back

This demonstrates Newton's 1st Law, as the dishes and glasses remain at rest due to inertia.

Front

What is Newton's 1st Law of Motion?

Back

Newton's 1st Law states that an object at rest will remain at rest, and an object in motion will remain in motion at a constant velocity unless acted upon by a net external force.

Front

What is Newton's 2nd Law of Motion?

Back

Newton's 2nd Law 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 Newton's 3rd Law of Motion?

Back

Newton's 3rd Law states that for every action, there is an equal and opposite reaction.

Front

What is the unit of force in the International System of Units (SI)?

Back

The unit of force is the Newton (N), which is defined as the force required to accelerate a one-kilogram mass by one meter per second squared.

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 greater its inertia.