Force and Motion

Front

What is the force exerted by an object at rest when a force is applied to it?

Back

The object exerts an equal and opposite force according to Newton's Third Law of Motion.

Front

What is the minimum force required to move an object called?

Back

It is called the threshold force or static friction force.

Front

What happens to the motion of an object when no net force acts on it?

Back

The object will remain at rest or continue to move at a constant velocity, as stated by Newton's First Law of Motion.

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 at the same speed and in the same direction unless acted upon by a net external force.

Front

What is the principle of action and reaction?

Back

For every action, there is an equal and opposite reaction, as stated in Newton's Third Law of Motion.

Front

What is the effect of increasing friction on the force required to move an object?

Back

Increasing friction requires more force to overcome it and move the object.

Front

What is the relationship between mass and force according to 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 static friction?

Back

Static friction is the force that keeps an object at rest and prevents it from moving when a force is applied.

Front

What is kinetic friction?

Back

Kinetic friction is the force that opposes the motion of two surfaces sliding past each other.

Front

How does the angle of a ramp affect the force needed to pull an object up the ramp?

Back

As the angle of the ramp increases, the force required to pull the object up the ramp also increases due to the greater component of gravitational force acting against the pull.