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Momentum and Energy
| Question | Answer |
|---|---|
| The momentum of two objects in a collision is __________________. | conserved |
| Momentum of a single object is the product of its _____________and velocity. | mass |
| In an ____________________ collision between two objects, the objects stick together. | inelastic |
| The law stating that the momentum of objects in a collision does not change. | The law of conservation of momentum. |
| The change in momentum of an object. | Impulse |
| Impulse is the product of __________________ and time. | force |
| For a gjven impulse if you increase the contact time you __________________________ the force. | decrease |
| For a given impulse if you decrease the contact time you _____________ the force. | increase |
| _________________ energy varies as the square of the velocity. | kinetic |
| Impulse is the change in _________________ of an object. | momentum |
| An airbag ______________________ the contact time for the driver in a crash. | increases |
| An airbag _________________ the force on the driver in a crash. | decreases |
| ______________ energy varies directly with the height of an object. | potential |
| If you double the ________________of an object , the kinetic energy goes up by a factor of 4. | velocity |
| mass X gravity X height | potential energy |
| 0.5 X mass X velocity squared | kinetic energy |
| KE + PE | mechanical energy |
| Objects bounce apart | elastic collision |
| The fat brown cat | Basil |
| The skinny black cat | Pepper |
| Is schmurr a good rapper? | no |
Created by:
vahajuddin
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