Part I Forces and Newton's Laws Test Review

Front

What is the normal force?

Back

The normal force is the force exerted by a surface to support the weight of an object resting on it, acting perpendicular to the surface.

Front

What is the unit for acceleration?

Back

The unit for acceleration is meters per second squared (m/s²).

Front

How do you calculate acceleration?

Back

Acceleration can be calculated using the formula: a = F/m, where 'a' is acceleration, 'F' is the net force applied, and 'm' is the mass of the object.

Front

What are action-at-a-distance forces?

Back

Action-at-a-distance forces, also known as field forces, are forces that can act on an object without physical contact, such as gravitational and electromagnetic forces.

Front

What is the unit for force?

Back

The unit for force is Newtons (N).

Front

What is Newton's First Law of Motion?

Back

Newton's First Law states that an object at rest will remain at rest, and an object in motion will remain in motion at a constant velocity unless acted upon by a net external force.

Front

What is Newton's Second Law of Motion?

Back

Newton's Second Law states that 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

Newton's Third Law states that for every action, there is an equal and opposite reaction.

Front

What is frictional force?

Back

Frictional force is the force that opposes the relative motion of two surfaces in contact.

Front

What is tension force?

Back

Tension force is the force transmitted through a string, rope, or cable when it is pulled tight by forces acting from opposite ends.