| ## Contents## Mechanics
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The four situations below show before and after pictures of a car's velocity. Rank these situations from highest to lowest in terms of the change in velocity. |

Rank the following graphs from highest to lowest according to average acceleration. |

Rank the following graphs from highest to lowest according to acceleration. |

The two situations below show two heavy masses that are tied to a bar with light pieces of thread, and thread is also tied to the bottoms of the wieghts. If the thread on the left is pulled downward slowly and the thread on the right is pulled downward quickly, which of the bottom threads are more likely to break? |

Two forces are acting on an object that is on a frictionless surface. Which object will have the greater acceleration? |

In each case the magnitude of the pushing force is the same. Rank the normal forces that the wall applies to the pusher from smallest to largest. |

The two situations below show rocks being thrown straight out off ofcliffs. The speeds and heights are given. Which rock would hit the water first? |

The two situations below show rocks being thrown straight out off ofcliffs. The speeds, heights, and rock masses are given. Which rock would hit the water first? |

The three situations below show rockets at the moment their engines are turned off. The rocketshave different speeds and different masses. Rank the rockets from highest to lowest on the maximum height they will attain. |

The two situations below show rocks being thrown straight out off ofcliffs. The speeds, heights, and rock masses are given. Which rock is thrown with more momentum? |

The two situations below show rocks being thrown straight out off ofcliffs. The speeds, heights, and rock masses are given. Which rock has more potential energy when it is thrown? |

The two situations below show rocks being thrown straight out off ofcliffs. The speeds, heights, and rock masses are given. Which rock has more kinetic energy when it is thrown? |

The two situations below show balls rolling down incline planes. If the balls are the same mass, which ball will have more kinetic energy when it reaches the bottom? |

The two situations below show rocks being thrown straight out off ofcliffs. The speeds, heights, and rock masses are given. Which rock has more total energy when it is first thrown? |

The two situations below show boxes being slid different distances across identical surfaces. If the boxes have the same mass, which box will require more work to slide? |

The situation below shows a man holding a wooden bar with hooks at varying distances from his hands. If a heavy weight is hung from one of the hooks rank from highest to lowest difficulty for holding up the bar. |

The situation below shows a central drive gear turning three other gears with varying radii. Rank the three gears from highest to lowest based on torque. |

The situation below shows a central drive gear turning three other gears with varying radii. Rank the three gears from highest to lowest based on angular speed. |

Shown below are identical containers containing different fluids. Metal blocks with equal volumes made from different metals aresuspended in the fluids. Which block will have the greater buoyant force? |

Shown below are containers containing identical fluids. The bottom of each container is plugged with a cork. Which cork has the greater pressure? |

Shown below are containers containing fluids with different specific heats. Equal amounts of thermal energy are added to each. Rank from highest to lowest based on their specific heats. |

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