Free Body Diagrams and Net Force

If the floor is pushing you up, what force is this called?

• Normal Force

• Air Resistant Force

• Frictional Force

• Applied Force

The Plunger (firing mechanism of a Pinball Machine) is used to launch the pinball into play.  What force allows the Plunger to apply a strong Applied force (not the answer!) to the pinball?

• Tensional Force

• Spring Force

• Gravitational Force

• Magnetic Force

If you pull on the handle of a door to open it, what force did you use?

• Applied Force

• Electrical Force

• Frictional Force

• Tensional Force

What force makes the clothes attract to each other after you take them out of the dryer?

• Gravitational Force

• Magnetic Force

• Frictional Force

• Electrostatic Force

Using a parachute to slow down after a dive

• Gravitational Force

• Frictional Force

• Air Resistance Force

• Tensional Force

Rollercoaster using electricity to make a charge to push the roller cart forward

• Rollercoaster uses Applied Force

• Rollercoaster uses Gravitational Force

• Rollercoaster uses Tensional Force

• Rollercoaster uses Electromagnetic Force

Using a rope to remove a tree stump

• Frictional Force

• Tensional Force

• Gravitational Force

• Applied Force

A soccer player hitting a soccer ball

• Gravitational Force

• Spring Force

• Applied Force

• Normal Force

Skydiver falling towards the Earth

• Applied Force

• Normal Force

• Air Resistant Force

• Gravitational Force

What is the magnitude of the Net External Force of this FBD?

• 200 N

• 600 N

• 800 N

• 0 N