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Test your basic knowledge |
Forces Motion And Technology
Start Test
Study First
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. A number that tells how many times a machine multiplies force.
Inclined plane
Pulley
Joule
Mechanical advantage
2. A simple machine consisting of two circular objects of different sizes; the wheel is the larger of the two circular objects
Compound machine
Joule
Pulley
Wheel and axle
3. A simple machine that consists of a wheel over which a rope - chain - or wire passes
Wheel and axle
Pulley
Watt
Mechanical advantage
4. The transfer of energy to an object by using a force that causes the object to move in the direction of the force
Joule
Mechanical advantage
Mechanical efficiency
Work
5. The work done on a machine; the product of the input force and the distance through which the force is exerted
Joule
Watt
Work input
Wheel and axle
6. The work done by a machine; the product of the output force and the distance through which the force is exerted
Work output
Mechanical efficiency
Mechanical advantage
Screw
7. 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.
Wedge
Mechanical efficiency
Wheel and axle
Watt
8. The rate at which work is done or energy is transformed
Lever
Power
Work input
Compound machine
9. A simple machine that is made up of two inclined planes and that moves; often used for cutting
Wheel and axle
Wedge
Pulley
Work
10. Simple machine consisting of a bar free to pivot about a fixed point called the fulcrum.
Work
Mechanical advantage
Joule
Lever
11. A type of simple machine that consists of an inclined plane wrapped around a cylinder
Compound machine
Machine
Work
Screw
12. The unit used to express power; equivalent to joules per second
Mechanical efficiency
Mechanical advantage
Wedge
Watt
13. A machine made of more than one simple machine
Screw
Pulley
Compound machine
Machine
14. 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
Mechanical advantage
Machine
Joule
Compound machine
15. A simple machine that is a straight - slanted surface - which facilitates the raising of loads; a ramp
Wheel and axle
Lever
Power
Inclined plane
16. A device that helps do work by either overcoming a force or changing the direction of the applied force
Work output
Wedge
Machine
Work input