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