(Unit 5) Newton's Laws

Front

What is Newton's First Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

Front

What is Newton's Second Law of Motion?

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

What is Newton's Third Law of Motion?

Back

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

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object and remains constant regardless of location, while weight is the force exerted by gravity on that mass and can change depending on the gravitational field.

Front

How do you convert pounds to Newtons?

Back

To convert pounds to Newtons, multiply the weight in pounds by 4.44822.

Front

What is inertia?

Back

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

Front

What is the formula for calculating force?

Back

Force (F) is calculated using the formula F = ma, where m is mass and a is acceleration.

Front

What is the role of friction in motion?

Back

Friction is a force that opposes the motion of an object, acting parallel to the surfaces in contact.

Front

What is gravitational force?

Back

Gravitational force is the attractive force between two masses, which depends on their masses and the distance between them.

Front

What is the concept of action-reaction pairs?

Back

Action-reaction pairs are forces that two objects exert on each other, equal in magnitude and opposite in direction.