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WorksheetsPTLW Unit 2 Test Machines
Total questions: 20
Worksheet time: 10mins
Which of the following is NOT a simple machine?
Screw
Bicycle
Wheel and Axle
Inclined plane
What is the main purpose of most machines in engineering?
To reduce the resistance force
To make our lives easier
To increase the effort force
To make tasks more difficult
What is the effort force?
The distance over which force is applied
The weight of the object being moved
The force applied to move an object
The speed at which an object moves
Which simple machine is used in seasaw?
Pulley
Lever
Screw
Wheel and axle
What does a pulley system allow you to do?
Change the direction of the effort force
Change the magnitude of the effort force
Increase the resistance force
Decrease the distance of effort
What is a compound machine?
A machine that only reduces effort force
A machine that cannot change force direction
A machine that includes two or more simple machines
A machine with only one simple machine
Which of the following is an example of a compound machine?
Inclined plane
Bicycle
Lever
Pulley
What is the purpose of a concept sketch?
To measure the force applied
To create a 3D model
To capture or explain an idea quickly
To provide detailed technical drawings
What is an isometric view used for?
To show only one side of an object
To realistically represent a three-dimensional object
To create a 2D drawing
To measure the weight of an object
Speed and torque are _______.
inversely related (the opposite)
directly proportional (the same)
unrelated
the same
What is the resistance force?
The speed at which an object moves
The distance over which force is applied
The weight of the object being moved
The force applied to move an object
Which simple machine can change the direction of a force?
Inclined plane
Wedge
Pulley
Lever
What is the main benefit of using a lever?
It increases the effort force
It reduces the distance of effort
It changes the direction and magnitude of a force
It increases the resistance force
What is the role of 3D solid modeling in engineering?
To create simple sketches
To help design, document, and build solutions
To measure force
To increase resistance force
What are not the parts of a lever?
fulcrum
load
Effort arm
screw
What is the mechanical advantage of a lever with an effort arm of 10 meters and a load arm of 5 meters?
If the output/driven gear is bigger than the input/driver gear, the ouput gear will spin _______.
If there are three gears the middle one is called the ________
The MA of a gear train, the driver gear (input gear) is 20 N and the driven gear (output gear) is 120N? GR = N out/N IN
Which of the following is NOT considered a type of simple machine?
Lever
Pulley
Battery
Inclined Plane
