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The greater the mass, the greater the inertia
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What is force
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Forces
FORCES?
| Question | Answer |
|---|---|
| The greater the mass, the greater the inertia | More force is needed |
| What is force | A push or pull on an object |
| Force causes “things” to | Change speed or change direction |
| Force is measured in | Newtons (N) |
| Net force is | The total force acting on an object |
| Balanced forces are when | All forces acting on an object are balanced Net=0 |
| What happens with speed with balanced forces? | There is no speed, NO acceleration, no motion |
| When all forces are equal in size and are pointed in the opposite direction. They balance each other and cancel each other out | Balanced forces |
| When one force is greater than the opposing force, net does NOT equal zero, There must be a change in direction OR a change in speed | Unbalanced forces |
| Adding forces | Two forces are added together to produce a larger net force than the original force. Forces are pointed in the SAME direction |
| Is adding forces an unbalanced or balanced force | Unbalanced, same direction, positive acceleration (gets faster) |
| Is subtracting forces an unbalanced or balanced force | Unbalanced, opposite direction, negative acceleration (gets slower) |
| Is pushing an unbalanced or balanced force | Balanced, no acceleration |
| Is pulling an unbalanced or balanced force | Balanced, no acceleration |
| Subtracting forces | Two forces can subtract a net force in the direction of the larger force. A force in one direction is grater than the force in the opposite direction resulting in the difference between the 2 forces |
| How much of a object accelerates depends on the mass of the object and the force applied . | 2nd law |
| For every action, there is a equal and opposite reaction. | 3rd law |
| An object at rest will stay at rest, and an object in motion will stay in motion unless acted upon by an unbalanced force. | 1st law |
| It's easier to push an empty shopping cart rather than one that is full of groceries . | 2nd law |
| A skateboarder hits a rock and is thrown over onto the ground. | 1st law |
| A car tire pushes on the road, and the road pushes back on the tire. | 3rd law |
| The harder you hit a baseball, the further the ball travels | 2nd law |
| The magician quickly pulls the tablecloth from under a set of dishes. The dishes don't move | 1st law |
| Air is released from a balloon.The air pushes down, and the balloon goes up | 3rd law |
| A soccer ball will stay where it landed until a person kicks it | 1st law |
| A cannon moves backwards as the cannonball shoots out | 3rd law |
| The Planets resist a change in motion and continually orbit the sun | 1st law |
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