| A | B |
|---|
| Distinguish between the relationship that defines acceleration and the relationship that states how it is produced. | Acceleration is the change in motion and force causes motion. |
| What is meant by the net force that acts on an object? | The net force acting on an object is the forces that act on an object. |
| Suppose a cart is being moved by a certain net force. If the net force is doubled, by how much does the cart's acceleration change? | The acceleration doubles. |
| Suppose a cart is being moved by a certain net force. If a load is dumped into the cart so its mass it doubled, by how much does the acceleration change? | The acceleration slows. |
| Distinguish between the concepts directly proportional and inversely proportional. Support your statement with examples. | An objects acceleration is the same as the net force or proportional., An inversely proportional acceleration means the proportion changes. |
| State Newton's second law in words then in form of an equation. | The acceleration produced by a net force on an object is directly proportional to the magnitude of the net force, is in the same direction as the net force and is inversely proportional to the mass of the object. a=F/m |
| How much force does a 20000 kg rocket develop to accelerate 1 m/s2? | 20000 m/s2 |
| What is the cause of friction and in what direction does it act with respect to the motion of a sliding object? | Friction is caused by the rough parts on all surfaces stopping moving objects. It effects a sliding object by speeding it up or down. |
| 100 N. How much force does it take to move an object of this weight? How much acceleration will it gain? | 100 and 1 m/s2 |
| Distinguish between force and pressure. | Force causes an object to move while pressure is applied force. |
| Which produces more pressure on the ground, a person standing on it or sitting on it? | Sitting. |
