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# PBHS Acceleration

### Acceleration due to gravity

Question | Answer |
---|---|

A net force causes a mass to ___ | accelerate |

In a = F/m, acceleration is directly proportional to __ | (net) force |

a = F/m or F = ma is a formula developed by this man | Isaac Newton |

a = F/m or F = ma is the formula representing which law of motion | Newton's 2nd Law of Motion |

A falling object reaches terminal velocity when these two forces are balanced | weight(gravity on an object) and air resistance |

Weight is a ___ | force |

In SI, all forces are measured in ___ | newtons (N) |

Constant velocity results when forces are | balanced (no net force) |

The constant velocity reached by a falling object when forces acting on it are balanced is called ___ | terminal velocity |

The amount of gravity any object has is due to the object's amount of ___ | mass |

In a = F/m, acceleration is inversely proportional to ___ | mass |

The amount of air resistance acting upon an object is based on the object's ___ | surface area |

When a falling object's weight is greater than the force of air resistance the object will be | accelerating by speeding up |

When a falling object's weight is less than the force of air resistance acting on it, it will | accelerate by slowing down |

In the absence of air, all objects fall at the ___ | same acceleration or same rate |

This force opposes all motion. | friction |

The force of gravity on Earth causes an acceleration rate of ___ | 9.8 m/s squared |

Adding all of the forces acting upon an object together finds the ___ force. | net (force) |

Moving at a constant velocity requires forces that are ____ | balanced (forces) |

When all of the forces acting on a body add up to zero, there is no __ | acceleration |

Weight = mass X ___ | gravity or acceleration due to gravity |

acceleration = force divided by __ | mass |

a normal force is a ___ force | support |

the curved path a thrown or launched object on earth follows is called | projectile motion |

according to a = F/m, the greater the force applied to a mass, the greater it will ___ | accelerate |

N stands for___ | newton |

He dropped items from the Leaning Tower of Pisa to see if they would land at the same time. | Galileo |

In SI, velocity is measured in __ | m/s |

The SI unit of length is the ___ | meter (m) |

The SI unit of mass is the ___ | kilogram (kg) |

The greater the mass, the greater the ___ necessary to accelerate | force |

When forces are balanced, the net force equals ___ | zero |

Force equals mass times ___ | acceleration |

The net force of a falling object is weight minus ___. | air resistance |

When sitting on a chair, the chair is exerting a ____ force. | normal |

mass time gravity equals ___. | weight |

9.8 m/s squared is the acceleration due to gravity on ___. | Earth |

Earth has more gravity than the moon because of Earth's greater ___. | mass |

Created by:
gkarlish