SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
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.
Machine
Mechanical advantage
Lever
Work input
2. The transfer of energy to an object by using a force that causes the object to move in the direction of the force
Wedge
Pulley
Work
Lever
3. 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
Lever
Compound machine
Inclined plane
Joule
4. The rate at which work is done or energy is transformed
Work output
Work input
Power
Joule
5. A simple machine that is made up of two inclined planes and that moves; often used for cutting
Compound machine
Wheel and axle
Work output
Wedge
6. The work done by a machine; the product of the output force and the distance through which the force is exerted
Wheel and axle
Mechanical efficiency
Work output
Wedge
7. The unit used to express power; equivalent to joules per second
Watt
Pulley
Screw
Machine
8. A type of simple machine that consists of an inclined plane wrapped around a cylinder
Compound machine
Screw
Work input
Work
9. A simple machine consisting of two circular objects of different sizes; the wheel is the larger of the two circular objects
Mechanical efficiency
Machine
Screw
Wheel and axle
10. The work done on a machine; the product of the input force and the distance through which the force is exerted
Lever
Watt
Joule
Work input
11. Simple machine consisting of a bar free to pivot about a fixed point called the fulcrum.
Lever
Screw
Mechanical efficiency
Power
12. A simple machine that consists of a wheel over which a rope - chain - or wire passes
Wheel and axle
Inclined plane
Pulley
Wedge
13. A simple machine that is a straight - slanted surface - which facilitates the raising of loads; a ramp
Inclined plane
Machine
Work
Lever
14. A machine made of more than one simple machine
Compound machine
Wheel and axle
Work input
Joule
15. 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.
Mechanical efficiency
Wheel and axle
Machine
Work input
16. A device that helps do work by either overcoming a force or changing the direction of the applied force
Joule
Machine
Screw
Power