Simple Machines Assessment Noel Pd 4

36 Questions | By Ysmsscience8 | Updated: Mar 15, 2022 | Attempts: 60

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Simple Machines Assessment Noel Pd 4 - Quiz

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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
- A.
  
  1
- B.
  
  3
- C.
  
  .33
- D.
  
  5
19.

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?
- 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?
- A.
  
  Lever A
- B.
  
  Lever B
- C.
  
  Lever C
22.

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?
- A.
  
  Lever A
- B.
  
  Lever B
- C.
  
  Lever C
24.

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