Contact Forces Review - TG

Front

What is a contact force?

Back

A contact force is a force that acts at the point of contact between two objects, such as friction, tension, and normal force.

Front

What is the breaking point of an object?

Back

The breaking point is the specific amount of force that causes an object to fail or break.

Front

What happens to two identical sheets of paper dropped from the same height?

Back

The crumpled sheet will fall faster than the flat sheet due to air resistance.

Front

What is Newton's 1st Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

Front

What is Newton's 2nd 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 3rd Law of Motion?

Back

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

Front

What is normal force?

Back

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 gravitational force?

Back

Gravitational force is the attractive force between two masses, such as the force that pulls objects toward the Earth.

Front

What is the role of friction in motion?

Back

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

Front

What is the difference between balanced and unbalanced forces?

Back

Balanced forces result in no change in motion, while unbalanced forces cause an object to accelerate.