Simple Machines Assessment Noel Pd 2
- 1.A slanted surface used to raise an object is ______________
- A.
An inclined plane
- B.
A screw
- C.
An effort ramp
- D.
An efficiency board
- 2.A device that does work with only one movement and changes the size and direction of a force is __________________
- A.
A compound machine
- B.
A simple machine
- C.
An effort machine
- D.
A wedge
- 3.A bar that is free to pivot about a fixed point is a _____________
- A.
Lever
- B.
Wedge
- C.
Fulcrum
- D.
Ramp
- 4.The work output of a machine compared to the work input is the _________ of the machine.
- A.
Efficiency
- B.
Power
- C.
Effort
- D.
Resistance
- 5.The amount by which a machine multiplies an effort force is called the _________
- A.
Resistance force
- B.
Efficiency
- C.
Fulcrum
- D.
Mechanical advantage
- 6.Two inclined planes put together form a simple machine called _________________
- A.
A screw
- B.
A wedge
- C.
A lever
- D.
An incline plane
- 7.An inclined plane wrapped around a cylindrical post is a
- A.
Screw
- B.
Wedge
- C.
Lever
- D.
Block and tackle
- 8.Two or more simple machines working together is called ________________
- A.
A pulley
- B.
A compound machine
- C.
A wheel and axle
- D.
A lever
- 9.The unit for power is the ___________
- A.
Joule
- B.
MA
- C.
Watt
- D.
Second
- 10.A lever with a mechanical advantage greater than 1 is used to _____________
- A.
Increase resistance distance
- B.
Change direction
- C.
Decrease effort force
- D.
Increase speed
- 11.Three of the listed simple machines are basically the same. Choose the one that DOES NOT belong with the group.
- A.
Wedge
- B.
Lever
- C.
Pulley
- D.
Wheel and axle
- 12.A system of pulleys designed to reduce the effort force is called _________________
- A.
A simple pulley
- B.
A fixed pulley
- C.
A movable pulley
- D.
A block and tackle
- 13.Two simple machines that are part of a bicycle are _____________
- A.
An inclined plane and a wedge
- B.
An inclined plane and a lever
- C.
A gear and a wheel and axle
- D.
A wheel and axle and an inclined plane
- 14.Which of the following groups of simple machines represent variations of the lever?
- A.
Pulley, inclined plane, and wedge
- B.
Pulley, wheel and axle
- C.
Pulley, wedge, and screw
- D.
Wedge, screw, and wheel and axle
- 15.The MA of a single fixed pulley is always one because
- A.
The pulley changes only the direction of the effort force
- B.
The pulley changes only the size of the effort force
- C.
The pulley changes the size and direction of the effort force
- D.
The pulley changes only the speed at which the effort force is applied
- 16.Which of the following CANNOT be done by a simple machine?
- A.
Change the direction of a force
- B.
Increase the amount of work being done
- C.
Decrease the time it takes to do the work
- D.
Transfer energy from one location to another
- 17.A machine that changes only the direction of a force has an MA of ______________
- A.
10
- B.
5
- C.
3
- D.
1
- 18.
![What is the IMA of the inclined plane below?IMA = Effort Distance/Resistance DistanceActual MA = Resistance Force/ Effort ForceW = FxDWin = Fe x DeWout = Fr x DrWin = WoutEfficiency = Wout/Win x 100 - ProProfs]( "What is the IMA of the inclined plane below?IMA = Effort Distance/Resistance DistanceActual MA = Resistance Force/ Effort ForceW = FxDWin = Fe x DeWout = Fr x DrWin = WoutEfficiency = Wout/Win x 100")
What is the IMA of the inclined plane below?IMA = Effort Distance/Resistance DistanceActual MA = Resistance Force/ Effort ForceW = FxDWin = Fe x DeWout = Fr x DrWin = WoutEfficiency = Wout/Win x 100- A.
1
- B.
3
- C.
.33
- D.
5
- 19.
![What is the IMA for this pulley system? - ProProfs]( "What is the IMA for this pulley system?")
What is the IMA for this pulley system?- A.
0
- B.
2
- C.
4
- D.
6
- 20.
![Which pulley system will require the greatest effort distance to raise the resistance force 1 meter? - ProProfs]( "Which pulley system will require the greatest effort distance to raise the resistance force 1 meter?")
Which pulley system will require the greatest effort distance to raise the resistance force 1 meter?- A.
System A
- B.
System B
- C.
The effort distance will be the same for both A and B
- D.
More information is needed
- 21.
![Which lever below is a first class lever? - ProProfs]( "Which lever below is a first class lever?")
Which lever below is a first class lever?- A.
Lever A
- B.
Lever B
- C.
Lever C
- 22.
![Which lever below is a second class lever? - ProProfs]( "Which lever below is a second class lever?")
Which lever below is a second class lever?- A.
Lever A
- B.
Lever B
- C.
Lever C
- 23.
![Which lever below is a third class lever? - ProProfs]( "Which lever below is a third class lever?")
Which lever below is a third class lever?- A.
Lever A
- B.
Lever B
- C.
Lever C
- 24.
![Which lever below has the greatest mechanical advantage? - ProProfs]( "Which lever below has the greatest mechanical advantage?")
Which lever below has the greatest mechanical advantage?- A.
Lever A
- B.
Lever B
- C.
Lever C
- 25.The ___________________ is an example of a second class lever.
- A.
Fishing pole
- B.
Wheel barrow
- C.
See saw
- D.
Hockey stick
.JPG "What is the IMA for this pulley system?")
.JPG "Which pulley system will require the greatest effort distance to raise the resistance force 1 meter?")
.JPG "Which lever below is a first class lever?")
.JPG "Which lever below is a second class lever?")
.JPG "Which lever below is a third class lever?")
.JPG "Which lever below has the greatest mechanical advantage?")
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