period 6 - Forces Review

Front

What is the definition of force?

Back

A force is a push or pull that can cause an object to accelerate, change direction, or change shape.

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 a constant velocity unless acted upon by a net external force.

Front

What is friction?

Back

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

Front

What is gravity?

Back

Gravity is the force that attracts two bodies toward each other, pulling objects toward the center of the Earth.

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 inertia?

Back

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

Front

What is the normal force?

Back

The normal force is the support force exerted upon an object that is in contact with a stable surface.

Front

What does Newton's Third Law of Motion state?

Back

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

Front

What is net force?

Back

Net force is the vector sum of all the forces acting on an object.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.