Senteces of vocabulary # 1,2,3.

1. Force:They are applying all their force in that box.
2. Friction:When a wheel touch the ground it create friction.
3. Drag force: When a skydriver is falling down ther is apply the drag force.
4. Gravity:something fall down why? because the gravity.
5. Net Force:We are trying to put all our net force in this game.
6. Balanced Force: I apply the balanced force when there is the same mass and distance so the force is cancel.
7. Unbalanced Force:When there is the same mass but different distance so the force is not cancel.
8. Inertia:The Inertia makes something continues moving.
9. Momentum:A heavy ball has less momentum than a ball with less mass.
10. Potential energy:The Atomic enrgy is a type of potential energy.
11. Gravitational potential energy:For example, a ball is in the air that is an example of a gravitational potential energy.
12. Kinetic energy:The sound is a type of kinetic energy.
13. Work:If I am in a seesaw i can be applying work.
14. Simple Machine:A gear is a simple machine.
15. Effort Force:The force that I apply to a machine or object is called Effort force.
16. Resistance Force: When a machine need to support its weight is called a resistance force.
17. Lever:Ther are three types of levers that acts in different way.
18. Fulcrum:A lever it can not e a lever without a fulcrum.
19. Mechanical advantage:The third-class lever is an example of a mechanical advantage.
20. Pulley:a pulley is a tool that have a wheel and rope that pass over it.
21. Wheel and axle:a Wheel and axle is an example of a simple machine.