Test your basic knowledge |

Forces Motion And Technology

Subject : science
Instructions:
  • Answer 16 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. The rate at which work is done or energy is transformed






2. A device that helps do work by either overcoming a force or changing the direction of the applied force






3. A simple machine consisting of two circular objects of different sizes; the wheel is the larger of the two circular objects






4. Simple machine consisting of a bar free to pivot about a fixed point called the fulcrum.






5. The unit used to express energy; equivalent to the amount of work done by a force of 1 N acting through a distance of 1 m in the direction of the force






6. The unit used to express power; equivalent to joules per second






7. A simple machine that consists of a wheel over which a rope - chain - or wire passes






8. A simple machine that is made up of two inclined planes and that moves; often used for cutting






9. The work done by a machine; the product of the output force and the distance through which the force is exerted






10. A type of simple machine that consists of an inclined plane wrapped around a cylinder






11. The transfer of energy to an object by using a force that causes the object to move in the direction of the force






12. A quantity - usually expressed as a percentage - that measures the ratio of work output to work input; it can be calculated by dividing work output by work input.






13. A number that tells how many times a machine multiplies force.






14. A machine made of more than one simple machine






15. The work done on a machine; the product of the input force and the distance through which the force is exerted






16. A simple machine that is a straight - slanted surface - which facilitates the raising of loads; a ramp