Forces and Interactions

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 unless acted upon by an unbalanced force.

Front

What is Newton's 2nd Law of Motion?

Back

Acceleration depends on two variables: the mass of the object and the amount of force applied.

Front

What is Newton's 3rd Law of Motion?

Back

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

Front

What is inertia?

Back

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

Front

What is the unit of force?

Back

Newton (N) is the unit that measures force.

Front

What is the unit of mass?

Back

Kilogram (kg) is the unit that measures mass.

Front

What does friction do?

Back

Friction is a force that opposes the motion of an object.

Front

What is an unbalanced force?

Back

An unbalanced force is a force that causes an object to accelerate.

Front

What is a balanced force?

Back

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

Front

What is the relationship between mass and acceleration?

Back

The greater the mass of an object, the more force is needed to accelerate it.