Newton%20s%20Law%20of%20Motion%20-%20First,%20Second%20&%20Third%20-%20Physics

What does Newton's First Law of Motion state about an object at rest?

An object at rest will remain at rest unless acted on by an unbalanced force.

What formula is used to calculate the weight force of an object?

Weight force = mass (m) x gravitational acceleration (g).

What is the weight force of a 10 kg box on Earth?

98 Newtons (10 kg x 9.8 m/s²).

What is the normal force acting on an object at rest on a surface?

The normal force balances the weight force, making it equal to the weight force.

What happens to an object in motion according to Newton's First Law?

It will continue in motion unless acted on by a net force.

What is the reason a ball stops quickly on a rough surface like carpet?

Friction opposes motion, creating a net force that stops the ball.

How does friction affect a puck sliding on ice?

Less friction allows the puck to slide for a longer distance.

What is Newton's Second Law of Motion?

The net force acting on an object is equal to the mass of the object times its acceleration (F = ma).

How is acceleration calculated?

Acceleration (a) = change in velocity (vf - vo) / change in time (t).

What is momentum?

Momentum (p) is the product of mass (m) and velocity (v), expressed as p = mv.

What does Newton's Third Law of Motion state?

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

If a force of 200 N is applied to an object of mass 10 kg, what is its acceleration?

Acceleration is 20 m/s² (200 N / 10 kg).

How does increasing mass affect acceleration when net force is constant?

Increasing mass results in decreasing acceleration.

What happens to the acceleration of an object when the net force is zero?

The acceleration is zero; the object has constant velocity.

How is impulse defined in terms of momentum?

Impulse equals the change in momentum over a change in time.

What is the relationship between applied force and frictional force for constant velocity?

The applied force equals the frictional force, resulting in a net force of zero.

In a collision, which skater experiences greater acceleration based on mass?

The lighter skater experiences greater acceleration.

What force does an astronaut feel when throwing a package in space?

The astronaut feels an equal and opposite reaction force according to Newton's Third Law.

If the net force on an object increases, what happens to its acceleration?

The object's acceleration increases as well.

What effect does increasing acceleration have on required net force if mass remains the same?

The net force will increase if acceleration increases.

How can you describe the relationship between mass and acceleration when applying a constant force?

Mass and acceleration are inversely related; increasing mass decreases acceleration.

What is the definition of scalar and vector quantities?

Scalar quantities have magnitude only, while vector quantities have both magnitude and direction.

What do you observe about forces when two skaters push against each other?

Forces exerted by both skaters are equal in magnitude but opposite in direction.

How does energy change when a ball is thrown in space?

The ball maintains constant velocity but experiences change in momentum.