Steam Flashcards
(20 cards)
Mass
The amount of matter or substance that makes up an object
Center of Mass
The point on the object where force is applied so that it moves without rotation
are mass and weight the same thing?
Mass and weight are NOT the same thing
How do you find the total mass of a robot
Each part on a robot has a set amount of mass that combines to make the mass of the robot
Does rotation affect how your robot drives?
Yes it does
What happens of one side is heavier then the other?
If your center of mass is off to one side, it could cause your robot to veer left or right
while driving, or tip up
Does changing the center of mass changes how the robot moves?
Yes, it does
Is the center of mass making the wheels tip up?
If the wheels aren’t making contact with the ground, force cannot be transferred
from the motors to the wheels to the ground to move forward
Is the center of mass right over the motors and wheels?
Additional downward force is applied on the wheels, which creates additional
traction
Is the center of mass to the left or right?
Could cause your robot to veer towards the side where the center of mass is
located (because of the rotation)
Mechanical Advantage:
Advantage gained by the use of a mechanism in transmitting force.
Gear Train:
a mechanism that is made up of two or more gears
Driving Gear:
the gear which is connected to the input force (such as a motor)
Driven Gear:
the gear which is connected to the output (such as the wheel), and moves because it’s connected to the input or driving gear
Torque:
Measure of the force that can cause an object to rotate about an axis, also known as
rotational force.
2 gears of the same size
Reverses the direction of rotation, and Input rotates clockwise, output is counterclockwise
Big gear driving a smaller gear
Increased speed,Decreased torque
Small gear driving a bigger gear
Increased torque, Decreased speed
Force:
Any influence that, when unbalanced, will change the motion of an object. Can also be
described as a push or a pull.
Traction:
The force that makes an object move by pushing against a surface.