Forces Flashcardizz 12.14

Front

What is the formula to calculate net force?

Back

Net Force = Total Forces acting on an object

Front

Define Newton's First Law of Motion.

Back

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 does Newton's Second Law of Motion state?

Back

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F = ma).

Front

Explain Newton's Third Law of Motion.

Back

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

Newton (N) is the unit of force.

Front

How do you calculate acceleration?

Back

Acceleration = Net Force / Mass (a = F/m).

Front

What is the relationship between mass and weight?

Back

Weight is the force of gravity acting on an object, calculated as Weight = Mass x Gravitational Acceleration (W = mg).

Front

If an object has a mass of 3.8 kg and a net force of 12.5 N down, what is the magnitude of the unknown force acting on it?

Back

17.2 N.

Front

What is the significance of the net force being zero?

Back

If the net force is zero, the object is in equilibrium and will not accelerate.

Front

Describe the concept of action-reaction pairs in Newton's Third Law.

Back

For every force exerted by one object, there is a force of equal magnitude but opposite direction exerted by the second object.