Forces/Newtons laws

What is mass?

Measure of how much matter is in an object

How can you find the weight of an object?

Must know matter, and location in the universe

What is Newtons second law of motion?

When you apply an unbalanced force on an object, it accelerates

How does the magnitude of a force relate to the acceleration of an object?

The larger the force, the greater the acceleration

What is the relationship between force and acceleration?

They are proportional (double one, double the other)

What is the relationship between acceleration and mass?

Indirectly proportional (double one, half the other)

If an object is not moving, what is its net force?

0

How do we know what sign to attach to forces?

Forces in the same direction as acceleration are positive, and opposite direction are negative

What is air resistance?

Force that acts against a falling object

What is the relationship between speed and air resistance?

The faster something is falling, the greater the air resistance

What is terminal velocity?

Fastest speed an object can fall at (when terminal velocity is reached, a=0)

What is Newtons first law of motion?

Objects in motion have a constant velocity unless acted on by an outside, unbalanced force

What is inertia?

Property of remaining at rest or continuing to move in a straight line at a constant speed

What is the acceleration of an object at a constant velocity or at rest?

0

What is Newtons third law of motion?

When two things collide, they exert the same force on each other. The magnitude of the fore depends on the size of the colliding objects (AKA every action has an equal and opposite reaction)