# Chapter 7 Review: Question Preview (ID: 31670)

### Below is a preview of the questions contained within the game titled CHAPTER 7 REVIEW: Exam Review .To play games using this data set, follow the directions below. Good luck and have fun. Enjoy! [print these questions]

**Play games to reveal the correct answers. Click here to play a game and get the answers.**

What direction does force need to act to produce the greatest amount of work? |
||||

a) perpendicular to the direction of motion | b) in the same direction of the motion | c) against the motion | d) at a 45* angle of the motion | |

A car jack exerts a force of 4000 to raise a car 1.2 meters. The amount of work done by the jack is _____Joules |
||||

a) 0 | b) 3333 | c) 4800 | d) 10200 | |

The action that would require no work to be done is |
||||

a) pushing a cart of the hill | b) holding your textbook | c) throwing a baseball | d) lifting a balloon from the floor to the table | |

A 60 N block is pushed up of ramp that is 4 meters long and 3 meters tall. The amount of work done against gravity is ______ joules |
||||

a) 0 | b) 45 | c) 180 | d) 360 | |

when work is done on an object, causing the object to move, the object gains |
||||

a) kinetic energy | b) mechanical advantage | c) efficiency | d) friction | |

An electric heater raises the temperature of water by adding 5250 J of energy to the water in 20 seconds. What is the needed power for this to happen? |
||||

a) 105,000 watts | b) 6500 watts | c) 262.5 watts | d) 0 | |

Running up a flight of stairs, Maria generates 350 watts of power. If it took her 7 seconds to climb the stairs, how much work did she do? |
||||

a) 6 j | b) 50 j | c) 2450 j | d) 3900 j | |

A car has a mass of 6200 kg and is moving at a velocity of 15 m/s. A 20,000 N force is used to move the car 34.85 m. What is the car's kinetic energy? |
||||

a) 15,000 j | b) 93,000 j | c) 697,500 j | d) 1,395,000 j | |

what is the unit of measurement for power? |
||||

a) watt | b) joule | c) newton | d) power does not have a unit | |

what is the unit of measurement for work |
||||

a) watt | b) joule | c) newton | d) work does not have a unit | |

Play Games with the Questions above at ReviewGameZone.com

To play games using the questions from the data set above, visit ReviewGameZone.com and enter game ID number: 31670 in the upper right hand corner at ReviewGameZone.com or simply click on the link above this text.

To play games using the questions from the data set above, visit ReviewGameZone.com and enter game ID number: 31670 in the upper right hand corner at ReviewGameZone.com or simply click on the link above this text.

TEACHERS / EDUCATORS

Log In | Sign Up / Register

Log In | Sign Up / Register