Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

Normal Size Small Size show me how

Normal Size Small Size show me how

# Forces

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

Forces are a | push or a pull on an object |

Newton's First Law | an object in motion remains in motion unless acted upon by an unbalanced force (forces are balanced) |

Newton's Second Law | force is directly related to an object's mass and acceleration (forces are unbalanced) |

Newton's Third Law | For every action there is an equal and opposite reaction |

Example of Newton's First Law | A car going a constant speed |

Example of Newton's Second Law | A car accelerating |

Acceleration | when an object speeds up, slows down, or changes direction |

Example of Newton's Third Law | Gases of rocket push ground down and ground pushes gases of rocket up. |

A toy car has a 5 N applied in the forward direction as well as a frictional force of 2 N. What is the net force acting on the car? | 3 N |

What is the acceleration of a 10 kg object that has a force of 20 N? | 2 m/s^2 |

If a ball is hit with 4x the force, it will result in _______ the acceleration? | 4x |

If an object is accelerating its net force is? | Not 0 N |

What is the relationship between mass and acceleration? | inverse or indirect |

Weight is ______. | force of gravity on an object |

A 0.02 kg piece of gum hits a paper projectile with a 1 N force. If the projectile is now traveling at a constant velocity, what is its acceleration | 0 N |

If a 100 kg female traveled to the moon where gravity is 1/6th of the Earth's gravity (g of moon= 1.63 m/s^2), how much would she weigh? | 163 N |

If a ball has a mass of 30 N on the Earth, what is it's mass on the moon (g of moon = 1.63 m/s^2) | 30 N |

What is the unit of force? | N |

What is the unit of mass? | kg |

What is the unit of acceleration? | m/s^2 |

What is the unit of speed? | m/s |

What is another way to write the unit of a Newton? | kg*m/s^2 |

What do call the force that is perpendicular to the surface? | Normal Force |

The opposite of the thrust force on an airplane is the _____. | drag force |

The opposite of the weight force on an airplane is the _____. | lift force |

True or False: A force is any interaction that changes and object's motion. | True |

True or False: A force is necessary to continue an object's motion. | False |

Created by:
NISD Physics