Forces, Friction, & Gravity (Study Guide)

What is the definition of force?

• The overall force on an object when all the individual forces acting on it are added together.

• Forces that produce a nonzero net force, which changes an object's motion

• A push or pull on an object.

• The force one surface exerts on another when the two surfaces rub against one another.

Tags

NGSS.HS-PS2-1

What is the definition of friction?

• The overall force on an object when all the individual forces acting on it are added together.

• Forces that produce a nonzero net force, which changes an object's motion

• A push or pull on an object.

• The force one surface exerts on another when the two surfaces rub against one another.

What is the definition of net force ?

• The overall force on an object when all the individual forces acting on it are added together.

• Forces that produce a nonzero net force, which changes an object's motion

• Equal forces acting on an object in opposite directions

• The force one surface exerts on another when the two surfaces rub against one another.

Tags

NGSS.MS-PS2-2

What is the definition of unbalanced force ?

• The overall force on an object when all the individual forces acting on it are added together.

• Forces that produce a nonzero net force, which changes an object's motion

• Equal forces acting on an object in opposite directions

• The force one surface exerts on another when the two surfaces rub against one another.

Tags

NGSS.MS-PS2-2

Choose the letters of the TWO ways that forces are described.

• Direction

• Velocity

• Strength

• Acceleration

The SI unit used to measure the strength of a force is the ________________.

• meters/second (m/s)

• Newton (N)

• kilogram (kg)

• meters/second squared (m/s^2)

The overall force on an object after all the forces are added together is called the ______________________.

Tags

NGSS.MS-PS2-2

When two forces act in the same direction, they are ______________.

• added

• subtracted

Tags

NGSS.MS-PS2-2

When two forces act in opposite directions, they are ___________________

• added

• subtracted

The net force always acts in the direction of the ________________ force.

• larger

• smaller