Types of Forces
Balanced or Not
3 Laws
Free Body Diagrams
Vocabulary
100
What is the force that is created when two surfaces rub against each other?
Friction
100
An apple resting on a table.
Balanced
100
Which law is related to intertia?
1st
100
Draw a free body diagram of free fall.
100
What is the definition of a force?
A push or pull
200
What force is created when an object moves through a liquid or a gas?
Drag
200
A sky diver with a mass of 100kg fall to Earth before is parachute opens.
Not Balanced
200
Which law explains why two hockey players bounce backward when they run into each other?
3rd law
200
Draw a free body diagram of a book at rest on a table.
200
What is the tendency to resist change in motion?
Inertia
300
What force is on an object that is being pulled tight?
Tension
300
A car that is turning a corner?
Not Balanced
300
Which law is the equation that relates force, mass and acceleration?
2nd law
300
A boat accelerating to the right due to thrust.
300
What is the sum of all the forces acting on an object?
Net Force
400
What is the reaction force that act opposite gravity on a solid surface?
Normal
400
Normal = 100N Weight = - 100N Thrust = 25N Friction = - 10N
Not Balanced
400
Which law causes you to continue moving forward when your car stops suddenly?
1st law
400
An airplane traveling with constant velocity.
400
What kind of net force causes acceleration?
Unbalanced force
500
What is a reaction force that is created when one object pushes on another object and the second object pushes back?
Thrust
500
A sky diver with a mass of 100kg, whose parachute gives 980N of Drag. Remember the acceleration of gravity is 9.8 m/s2.
balanced
500
Which law explains why if you are in space, throwing a tool away from your spaceship will cause you to move toward your spaceship?
3rd Law
500
A lamp hanging from the ceiling by a cord.
500
What kind of net force will not change the motion of an object?
Balanced force
M
e
n
u