The main cause why a compass exists
Velocity
The reason why a child can't move a bookshelf
BalancedForce
The main cause why a marker will stay still
Interia
The main cause how a soccer ball will get faster and faster
2ndLawOfMotion
The reason why you were late for class
Time
The Main Reason why you don't want to fall into a pit
Gravity
The reason for something being able to stay at a constant speec
AverageSpeed
The reason why your suitcase is too big for it to go on a plane
Mass
The main reason how a soccer ball moves when you kick it
UnBalancedForce
The reason objects that can move other objects exist
Force
The cause of you being pulled to the ground quicker when you are a adult
Weight
The main cause why you got a ticket for driving too fast
Speed
The Main cause how the tougher kid has more force than a baby
Work
The way you are getting to England
Distance
The reason for a ball stopping after a while of rolling
Friction
The cause for a baseball to stay in motion
1stLawOfMotion
The reason for you to be able to dance
Motion
The main cause for when you push a wall on a skateboard, you go backwards
3rdLawOfMotion
The reason for when two people push a box in opposite directions, the one with the more force wins.
NetForce
The main cause that a news candy will keep rolling faster and faster until it is stopped
Acceleration