Force and Friction

A push or pull exerted on an object in order to change the motion.

• Newton

• Force

• Friction

• Speed

Tags

NGSS.MS-PS2-2

A force that opposes motion between two surfaces.

• force

• speed

• newton

• friction

The SI unit for force.

• meter

• watt

• newton

• pound

A ball moving along the floor.

• static friction

• sliding friction

• rolling friction

• fluid friction

Slipping across ice rink.

• static friction

• rolling friction

• fluid friction

• sliding friction

A force that causes motion to happen.

• balanced force

• unbalanced force

Tags

NGSS.MS-PS2-2

If forces are in the same direction you

• subtract the forces.

• add the forces.

• mulitiply the forces.

Tags

NGSS.MS-PS2-2

The combination of all of the forces acting on an object.

• gravity

• net force

• balanced force

Tags

NGSS.MS-PS2-2

Laura pushes a piano with 25 N of force while Bob pulls with 20 N of force. What is the total net force acting on the piano?

• 45 N

• 5 N

• 500 N

Tags

NGSS.MS-PS2-2

Many objects around you do not move because they exhibit

• balanced forces.

• unbalanced forces.

Tags

NGSS.3-PS2-1